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Finding the Fourth Proportional to 460,439, 635,424.97 and 256,489.87

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Solution

The fourth proportional to 460,439, 635,424.97 and 256,489.87 is: 353,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,439 : 635,424.97 = 256,489.87 : x
  2. Step 2: Convert to fraction form
    460,439/635,424.97 = 256,489.87/x
  3. Step 3: Cross multiply
    460,439x = 635,424.97 × 256,489.87
  4. Step 4: Simplify right side
    460,439x = 162,980,067,950.05
  5. Step 5: Solve for x
    x = 162,980,067,950.05/460,439
  6. Step 6: Final answer
    x = 353,966.69

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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.