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Finding the Fourth Proportional to 674,255.52, 930,393.36 and 372,431.52

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Solution

The fourth proportional to 674,255.52, 930,393.36 and 372,431.52 is: 513,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,255.52 : 930,393.36 = 372,431.52 : x
  2. Step 2: Convert to fraction form
    674,255.52/930,393.36 = 372,431.52/x
  3. Step 3: Cross multiply
    674,255.52x = 930,393.36 × 372,431.52
  4. Step 4: Simplify right side
    674,255.52x = 346,507,813,262.71
  5. Step 5: Solve for x
    x = 346,507,813,262.71/674,255.52
  6. Step 6: Final answer
    x = 513,911.72

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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.