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Finding the Fourth Proportional to 1,329,411.52, 1,834,578.52 and 725,799.52

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Solution

The fourth proportional to 1,329,411.52, 1,834,578.52 and 725,799.52 is: 1,001,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,411.52 : 1,834,578.52 = 725,799.52 : x
  2. Step 2: Convert to fraction form
    1,329,411.52/1,834,578.52 = 725,799.52/x
  3. Step 3: Cross multiply
    1,329,411.52x = 1,834,578.52 × 725,799.52
  4. Step 4: Simplify right side
    1,329,411.52x = 1,331,536,209,218.31
  5. Step 5: Solve for x
    x = 1,331,536,209,218.31/1,329,411.52
  6. Step 6: Final answer
    x = 1,001,598.22

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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.