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Finding the Fourth Proportional to 527,189, 788,799.50 and 369,724.68

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Solution

The fourth proportional to 527,189, 788,799.50 and 369,724.68 is: 553,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,189 : 788,799.50 = 369,724.68 : x
  2. Step 2: Convert to fraction form
    527,189/788,799.50 = 369,724.68/x
  3. Step 3: Cross multiply
    527,189x = 788,799.50 × 369,724.68
  4. Step 4: Simplify right side
    527,189x = 291,638,642,721.66
  5. Step 5: Solve for x
    x = 291,638,642,721.66/527,189
  6. Step 6: Final answer
    x = 553,195.61

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1.5x scale

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.