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Finding the Fourth Proportional to 438,404.16, 604,446.96 and 357,749.76

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Solution

The fourth proportional to 438,404.16, 604,446.96 and 357,749.76 is: 493,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,404.16 : 604,446.96 = 357,749.76 : x
  2. Step 2: Convert to fraction form
    438,404.16/604,446.96 = 357,749.76/x
  3. Step 3: Cross multiply
    438,404.16x = 604,446.96 × 357,749.76
  4. Step 4: Simplify right side
    438,404.16x = 216,240,754,872.73
  5. Step 5: Solve for x
    x = 216,240,754,872.73/438,404.16
  6. Step 6: Final answer
    x = 493,245.22

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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.