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Finding the Fourth Proportional to 675,777.20, 932,677.23 and 385,389.38

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Solution

The fourth proportional to 675,777.20, 932,677.23 and 385,389.38 is: 531,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,777.20 : 932,677.23 = 385,389.38 : x
  2. Step 2: Convert to fraction form
    675,777.20/932,677.23 = 385,389.38/x
  3. Step 3: Cross multiply
    675,777.20x = 932,677.23 × 385,389.38
  4. Step 4: Simplify right side
    675,777.20x = 359,443,899,409.82
  5. Step 5: Solve for x
    x = 359,443,899,409.82/675,777.20
  6. Step 6: Final answer
    x = 531,897.05

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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.