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Finding the Fourth Proportional to 610,412.82, 915,809.80 and 367,520.15

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Solution

The fourth proportional to 610,412.82, 915,809.80 and 367,520.15 is: 551,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,412.82 : 915,809.80 = 367,520.15 : x
  2. Step 2: Convert to fraction form
    610,412.82/915,809.80 = 367,520.15/x
  3. Step 3: Cross multiply
    610,412.82x = 915,809.80 × 367,520.15
  4. Step 4: Simplify right side
    610,412.82x = 336,578,553,522.13
  5. Step 5: Solve for x
    x = 336,578,553,522.13/610,412.82
  6. Step 6: Final answer
    x = 551,394.96

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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.