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Finding the Fourth Proportional to 689,730.24, 951,827.52 and 387,924

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Solution

The fourth proportional to 689,730.24, 951,827.52 and 387,924 is: 535,335.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,730.24 : 951,827.52 = 387,924 : x
  2. Step 2: Convert to fraction form
    689,730.24/951,827.52 = 387,924/x
  3. Step 3: Cross multiply
    689,730.24x = 951,827.52 × 387,924
  4. Step 4: Simplify right side
    689,730.24x = 369,236,738,868.48
  5. Step 5: Solve for x
    x = 369,236,738,868.48/689,730.24
  6. Step 6: Final answer
    x = 535,335.00

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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.