Home / 651,725.52-899,212.35-393,398.29

Finding the Fourth Proportional to 651,725.52, 899,212.35 and 393,398.29

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Solution

The fourth proportional to 651,725.52, 899,212.35 and 393,398.29 is: 542,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,725.52 : 899,212.35 = 393,398.29 : x
  2. Step 2: Convert to fraction form
    651,725.52/899,212.35 = 393,398.29/x
  3. Step 3: Cross multiply
    651,725.52x = 899,212.35 × 393,398.29
  4. Step 4: Simplify right side
    651,725.52x = 353,748,600,836.88
  5. Step 5: Solve for x
    x = 353,748,600,836.88/651,725.52
  6. Step 6: Final answer
    x = 542,787.71

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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.