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Finding the Fourth Proportional to 527,927.48, 728,530.98 and 298,481

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Solution

The fourth proportional to 527,927.48, 728,530.98 and 298,481 is: 411,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,927.48 : 728,530.98 = 298,481 : x
  2. Step 2: Convert to fraction form
    527,927.48/728,530.98 = 298,481/x
  3. Step 3: Cross multiply
    527,927.48x = 728,530.98 × 298,481
  4. Step 4: Simplify right side
    527,927.48x = 217,452,655,441.38
  5. Step 5: Solve for x
    x = 217,452,655,441.38/527,927.48
  6. Step 6: Final answer
    x = 411,898.72

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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.