Home / 855,430.20-1,283,145.30-224,407.80

Finding the Fourth Proportional to 855,430.20, 1,283,145.30 and 224,407.80

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Solution

The fourth proportional to 855,430.20, 1,283,145.30 and 224,407.80 is: 336,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,430.20 : 1,283,145.30 = 224,407.80 : x
  2. Step 2: Convert to fraction form
    855,430.20/1,283,145.30 = 224,407.80/x
  3. Step 3: Cross multiply
    855,430.20x = 1,283,145.30 × 224,407.80
  4. Step 4: Simplify right side
    855,430.20x = 287,947,813,853.34
  5. Step 5: Solve for x
    x = 287,947,813,853.34/855,430.20
  6. Step 6: Final answer
    x = 336,611.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.