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Finding the Fourth Proportional to 657,411.52, 907,161.44 and 381,673.92

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Solution

The fourth proportional to 657,411.52, 907,161.44 and 381,673.92 is: 526,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,411.52 : 907,161.44 = 381,673.92 : x
  2. Step 2: Convert to fraction form
    657,411.52/907,161.44 = 381,673.92/x
  3. Step 3: Cross multiply
    657,411.52x = 907,161.44 × 381,673.92
  4. Step 4: Simplify right side
    657,411.52x = 346,239,862,877.65
  5. Step 5: Solve for x
    x = 346,239,862,877.65/657,411.52
  6. Step 6: Final answer
    x = 526,671.43

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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.