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Finding the Fourth Proportional to 672,609.84, 928,207.92 and 370,814.64

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Solution

The fourth proportional to 672,609.84, 928,207.92 and 370,814.64 is: 511,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,609.84 : 928,207.92 = 370,814.64 : x
  2. Step 2: Convert to fraction form
    672,609.84/928,207.92 = 370,814.64/x
  3. Step 3: Cross multiply
    672,609.84x = 928,207.92 × 370,814.64
  4. Step 4: Simplify right side
    672,609.84x = 344,193,085,699.95
  5. Step 5: Solve for x
    x = 344,193,085,699.95/672,609.84
  6. Step 6: Final answer
    x = 511,727.70

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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.