Home / 765,951.21-1,057,014.23-426,431.61

Finding the Fourth Proportional to 765,951.21, 1,057,014.23 and 426,431.61

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Solution

The fourth proportional to 765,951.21, 1,057,014.23 and 426,431.61 is: 588,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,951.21 : 1,057,014.23 = 426,431.61 : x
  2. Step 2: Convert to fraction form
    765,951.21/1,057,014.23 = 426,431.61/x
  3. Step 3: Cross multiply
    765,951.21x = 1,057,014.23 × 426,431.61
  4. Step 4: Simplify right side
    765,951.21x = 450,744,277,759.65
  5. Step 5: Solve for x
    x = 450,744,277,759.65/765,951.21
  6. Step 6: Final answer
    x = 588,476.49

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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.