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Finding the Fourth Proportional to 443,545.63, 612,364.22 and 288,644.52

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Solution

The fourth proportional to 443,545.63, 612,364.22 and 288,644.52 is: 398,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,545.63 : 612,364.22 = 288,644.52 : x
  2. Step 2: Convert to fraction form
    443,545.63/612,364.22 = 288,644.52/x
  3. Step 3: Cross multiply
    443,545.63x = 612,364.22 × 288,644.52
  4. Step 4: Simplify right side
    443,545.63x = 176,755,576,347.07
  5. Step 5: Solve for x
    x = 176,755,576,347.07/443,545.63
  6. Step 6: Final answer
    x = 398,505.96

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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.