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Finding the Fourth Proportional to 659,929.72, 910,697.68 and 358,123.72

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Solution

The fourth proportional to 659,929.72, 910,697.68 and 358,123.72 is: 494,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,929.72 : 910,697.68 = 358,123.72 : x
  2. Step 2: Convert to fraction form
    659,929.72/910,697.68 = 358,123.72/x
  3. Step 3: Cross multiply
    659,929.72x = 910,697.68 × 358,123.72
  4. Step 4: Simplify right side
    659,929.72x = 326,142,440,956.97
  5. Step 5: Solve for x
    x = 326,142,440,956.97/659,929.72
  6. Step 6: Final answer
    x = 494,207.84

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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.