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Finding the Fourth Proportional to 527,788.37, 728,340.08 and 298,337.61

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Solution

The fourth proportional to 527,788.37, 728,340.08 and 298,337.61 is: 411,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,788.37 : 728,340.08 = 298,337.61 : x
  2. Step 2: Convert to fraction form
    527,788.37/728,340.08 = 298,337.61/x
  3. Step 3: Cross multiply
    527,788.37x = 728,340.08 × 298,337.61
  4. Step 4: Simplify right side
    527,788.37x = 217,291,241,164.63
  5. Step 5: Solve for x
    x = 217,291,241,164.63/527,788.37
  6. Step 6: Final answer
    x = 411,701.46

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1.5x scale

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.