Home / 1,520,887.80-2,281,331.70-399,070.20

Finding the Fourth Proportional to 1,520,887.80, 2,281,331.70 and 399,070.20

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Solution

The fourth proportional to 1,520,887.80, 2,281,331.70 and 399,070.20 is: 598,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,887.80 : 2,281,331.70 = 399,070.20 : x
  2. Step 2: Convert to fraction form
    1,520,887.80/2,281,331.70 = 399,070.20/x
  3. Step 3: Cross multiply
    1,520,887.80x = 2,281,331.70 × 399,070.20
  4. Step 4: Simplify right side
    1,520,887.80x = 910,411,497,785.34
  5. Step 5: Solve for x
    x = 910,411,497,785.34/1,520,887.80
  6. Step 6: Final answer
    x = 598,605.30

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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.