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Finding the Fourth Proportional to 526,725.34, 726,875.50 and 285,002.58

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Solution

The fourth proportional to 526,725.34, 726,875.50 and 285,002.58 is: 393,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,725.34 : 726,875.50 = 285,002.58 : x
  2. Step 2: Convert to fraction form
    526,725.34/726,875.50 = 285,002.58/x
  3. Step 3: Cross multiply
    526,725.34x = 726,875.50 × 285,002.58
  4. Step 4: Simplify right side
    526,725.34x = 207,161,392,838.79
  5. Step 5: Solve for x
    x = 207,161,392,838.79/526,725.34
  6. Step 6: Final answer
    x = 393,300.60

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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.