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Finding the Fourth Proportional to 674,216.27, 930,421.67 and 368,296.90

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Solution

The fourth proportional to 674,216.27, 930,421.67 and 368,296.90 is: 508,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,216.27 : 930,421.67 = 368,296.90 : x
  2. Step 2: Convert to fraction form
    674,216.27/930,421.67 = 368,296.90/x
  3. Step 3: Cross multiply
    674,216.27x = 930,421.67 × 368,296.90
  4. Step 4: Simplify right side
    674,216.27x = 342,671,416,753.82
  5. Step 5: Solve for x
    x = 342,671,416,753.82/674,216.27
  6. Step 6: Final answer
    x = 508,251.48

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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.