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Finding the Fourth Proportional to 674,393.93, 930,652.61 and 368,463.72

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Solution

The fourth proportional to 674,393.93, 930,652.61 and 368,463.72 is: 508,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,393.93 : 930,652.61 = 368,463.72 : x
  2. Step 2: Convert to fraction form
    674,393.93/930,652.61 = 368,463.72/x
  3. Step 3: Cross multiply
    674,393.93x = 930,652.61 × 368,463.72
  4. Step 4: Simplify right side
    674,393.93x = 342,911,718,976.21
  5. Step 5: Solve for x
    x = 342,911,718,976.21/674,393.93
  6. Step 6: Final answer
    x = 508,473.91

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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.