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Finding the Fourth Proportional to 648,207.32, 894,525.98 and 357,818.76

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Solution

The fourth proportional to 648,207.32, 894,525.98 and 357,818.76 is: 493,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,207.32 : 894,525.98 = 357,818.76 : x
  2. Step 2: Convert to fraction form
    648,207.32/894,525.98 = 357,818.76/x
  3. Step 3: Cross multiply
    648,207.32x = 894,525.98 × 357,818.76
  4. Step 4: Simplify right side
    648,207.32x = 320,078,175,162.29
  5. Step 5: Solve for x
    x = 320,078,175,162.29/648,207.32
  6. Step 6: Final answer
    x = 493,789.82

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Double scale
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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.