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Finding the Fourth Proportional to 675,376.72, 932,042.90 and 385,031.22

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Solution

The fourth proportional to 675,376.72, 932,042.90 and 385,031.22 is: 531,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,376.72 : 932,042.90 = 385,031.22 : x
  2. Step 2: Convert to fraction form
    675,376.72/932,042.90 = 385,031.22/x
  3. Step 3: Cross multiply
    675,376.72x = 932,042.90 × 385,031.22
  4. Step 4: Simplify right side
    675,376.72x = 358,865,614,879.34
  5. Step 5: Solve for x
    x = 358,865,614,879.34/675,376.72
  6. Step 6: Final answer
    x = 531,356.21

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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.