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Finding the Fourth Proportional to 530,454.90, 732,090.22 and 297,920.10

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Solution

The fourth proportional to 530,454.90, 732,090.22 and 297,920.10 is: 411,164.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,454.90 : 732,090.22 = 297,920.10 : x
  2. Step 2: Convert to fraction form
    530,454.90/732,090.22 = 297,920.10/x
  3. Step 3: Cross multiply
    530,454.90x = 732,090.22 × 297,920.10
  4. Step 4: Simplify right side
    530,454.90x = 218,104,391,551.42
  5. Step 5: Solve for x
    x = 218,104,391,551.42/530,454.90
  6. Step 6: Final answer
    x = 411,164.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.