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Finding the Fourth Proportional to 527,928.48, 728,532.36 and 298,482

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Solution

The fourth proportional to 527,928.48, 728,532.36 and 298,482 is: 411,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,928.48 : 728,532.36 = 298,482 : x
  2. Step 2: Convert to fraction form
    527,928.48/728,532.36 = 298,482/x
  3. Step 3: Cross multiply
    527,928.48x = 728,532.36 × 298,482
  4. Step 4: Simplify right side
    527,928.48x = 217,453,795,877.52
  5. Step 5: Solve for x
    x = 217,453,795,877.52/527,928.48
  6. Step 6: Final answer
    x = 411,900.10

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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.