Home / 688,057.20-1,032,085.80-510,910.20

Finding the Fourth Proportional to 688,057.20, 1,032,085.80 and 510,910.20

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Solution

The fourth proportional to 688,057.20, 1,032,085.80 and 510,910.20 is: 766,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,057.20 : 1,032,085.80 = 510,910.20 : x
  2. Step 2: Convert to fraction form
    688,057.20/1,032,085.80 = 510,910.20/x
  3. Step 3: Cross multiply
    688,057.20x = 1,032,085.80 × 510,910.20
  4. Step 4: Simplify right side
    688,057.20x = 527,303,162,495.16
  5. Step 5: Solve for x
    x = 527,303,162,495.16/688,057.20
  6. Step 6: Final answer
    x = 766,365.30

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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.