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Finding the Fourth Proportional to 438,248.57, 604,770.75 and 247,279.73

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Solution

The fourth proportional to 438,248.57, 604,770.75 and 247,279.73 is: 341,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,248.57 : 604,770.75 = 247,279.73 : x
  2. Step 2: Convert to fraction form
    438,248.57/604,770.75 = 247,279.73/x
  3. Step 3: Cross multiply
    438,248.57x = 604,770.75 × 247,279.73
  4. Step 4: Simplify right side
    438,248.57x = 149,547,544,748.04
  5. Step 5: Solve for x
    x = 149,547,544,748.04/438,248.57
  6. Step 6: Final answer
    x = 341,239.10

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1.5x scale

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.