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Finding the Fourth Proportional to 559,423.80, 839,135.70 and 403,126.20

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Solution

The fourth proportional to 559,423.80, 839,135.70 and 403,126.20 is: 604,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,423.80 : 839,135.70 = 403,126.20 : x
  2. Step 2: Convert to fraction form
    559,423.80/839,135.70 = 403,126.20/x
  3. Step 3: Cross multiply
    559,423.80x = 839,135.70 × 403,126.20
  4. Step 4: Simplify right side
    559,423.80x = 338,277,586,025.34
  5. Step 5: Solve for x
    x = 338,277,586,025.34/559,423.80
  6. Step 6: Final answer
    x = 604,689.30

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Double scale
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Similar ratio
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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.