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Finding the Fourth Proportional to 559,984.20, 838,226.70 and 402,520.20

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Solution

The fourth proportional to 559,984.20, 838,226.70 and 402,520.20 is: 602,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,984.20 : 838,226.70 = 402,520.20 : x
  2. Step 2: Convert to fraction form
    559,984.20/838,226.70 = 402,520.20/x
  3. Step 3: Cross multiply
    559,984.20x = 838,226.70 × 402,520.20
  4. Step 4: Simplify right side
    559,984.20x = 337,403,178,929.34
  5. Step 5: Solve for x
    x = 337,403,178,929.34/559,984.20
  6. Step 6: Final answer
    x = 602,522.68

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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.