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Finding the Fourth Proportional to 580,813.90, 801,637.94 and 371,127.76

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Solution

The fourth proportional to 580,813.90, 801,637.94 and 371,127.76 is: 512,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,813.90 : 801,637.94 = 371,127.76 : x
  2. Step 2: Convert to fraction form
    580,813.90/801,637.94 = 371,127.76/x
  3. Step 3: Cross multiply
    580,813.90x = 801,637.94 × 371,127.76
  4. Step 4: Simplify right side
    580,813.90x = 297,510,091,926.94
  5. Step 5: Solve for x
    x = 297,510,091,926.94/580,813.90
  6. Step 6: Final answer
    x = 512,229.64

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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.