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Finding the Fourth Proportional to 674,554.38, 930,848.49 and 372,728.94

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Solution

The fourth proportional to 674,554.38, 930,848.49 and 372,728.94 is: 514,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,554.38 : 930,848.49 = 372,728.94 : x
  2. Step 2: Convert to fraction form
    674,554.38/930,848.49 = 372,728.94/x
  3. Step 3: Cross multiply
    674,554.38x = 930,848.49 × 372,728.94
  4. Step 4: Simplify right side
    674,554.38x = 346,954,170,978.30
  5. Step 5: Solve for x
    x = 346,954,170,978.30/674,554.38
  6. Step 6: Final answer
    x = 514,345.74

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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.