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Finding the Fourth Proportional to 620,587.52, 930,862.72 and 171,335.76

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Solution

The fourth proportional to 620,587.52, 930,862.72 and 171,335.76 is: 256,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,587.52 : 930,862.72 = 171,335.76 : x
  2. Step 2: Convert to fraction form
    620,587.52/930,862.72 = 171,335.76/x
  3. Step 3: Cross multiply
    620,587.52x = 930,862.72 × 171,335.76
  4. Step 4: Simplify right side
    620,587.52x = 159,490,071,586.87
  5. Step 5: Solve for x
    x = 159,490,071,586.87/620,587.52
  6. Step 6: Final answer
    x = 256,998.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.