Home / 1,220,011.32-1,830,135.24-378,337.08

Finding the Fourth Proportional to 1,220,011.32, 1,830,135.24 and 378,337.08

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Solution

The fourth proportional to 1,220,011.32, 1,830,135.24 and 378,337.08 is: 567,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,011.32 : 1,830,135.24 = 378,337.08 : x
  2. Step 2: Convert to fraction form
    1,220,011.32/1,830,135.24 = 378,337.08/x
  3. Step 3: Cross multiply
    1,220,011.32x = 1,830,135.24 × 378,337.08
  4. Step 4: Simplify right side
    1,220,011.32x = 692,408,022,706.70
  5. Step 5: Solve for x
    x = 692,408,022,706.70/1,220,011.32
  6. Step 6: Final answer
    x = 567,542.29

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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.