Home / 670,337.70-1,005,506.55-355,409.70

Finding the Fourth Proportional to 670,337.70, 1,005,506.55 and 355,409.70

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Solution

The fourth proportional to 670,337.70, 1,005,506.55 and 355,409.70 is: 533,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,337.70 : 1,005,506.55 = 355,409.70 : x
  2. Step 2: Convert to fraction form
    670,337.70/1,005,506.55 = 355,409.70/x
  3. Step 3: Cross multiply
    670,337.70x = 1,005,506.55 × 355,409.70
  4. Step 4: Simplify right side
    670,337.70x = 357,366,781,283.54
  5. Step 5: Solve for x
    x = 357,366,781,283.54/670,337.70
  6. Step 6: Final answer
    x = 533,114.55

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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.