Home / 729,463.68-1,006,827.84-427,754.88

Finding the Fourth Proportional to 729,463.68, 1,006,827.84 and 427,754.88

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Solution

The fourth proportional to 729,463.68, 1,006,827.84 and 427,754.88 is: 590,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,463.68 : 1,006,827.84 = 427,754.88 : x
  2. Step 2: Convert to fraction form
    729,463.68/1,006,827.84 = 427,754.88/x
  3. Step 3: Cross multiply
    729,463.68x = 1,006,827.84 × 427,754.88
  4. Step 4: Simplify right side
    729,463.68x = 430,675,521,879.86
  5. Step 5: Solve for x
    x = 430,675,521,879.86/729,463.68
  6. Step 6: Final answer
    x = 590,400.23

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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.