Home / 739,486.18-1,020,490.95-399,954.43

Finding the Fourth Proportional to 739,486.18, 1,020,490.95 and 399,954.43

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Solution

The fourth proportional to 739,486.18, 1,020,490.95 and 399,954.43 is: 551,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,486.18 : 1,020,490.95 = 399,954.43 : x
  2. Step 2: Convert to fraction form
    739,486.18/1,020,490.95 = 399,954.43/x
  3. Step 3: Cross multiply
    739,486.18x = 1,020,490.95 × 399,954.43
  4. Step 4: Simplify right side
    739,486.18x = 408,149,876,227.41
  5. Step 5: Solve for x
    x = 408,149,876,227.41/739,486.18
  6. Step 6: Final answer
    x = 551,937.13

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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.