Home / 765,954.46-1,057,018.71-426,434.86

Finding the Fourth Proportional to 765,954.46, 1,057,018.71 and 426,434.86

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Solution

The fourth proportional to 765,954.46, 1,057,018.71 and 426,434.86 is: 588,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,954.46 : 1,057,018.71 = 426,434.86 : x
  2. Step 2: Convert to fraction form
    765,954.46/1,057,018.71 = 426,434.86/x
  3. Step 3: Cross multiply
    765,954.46x = 1,057,018.71 × 426,434.86
  4. Step 4: Simplify right side
    765,954.46x = 450,749,625,616.23
  5. Step 5: Solve for x
    x = 450,749,625,616.23/765,954.46
  6. Step 6: Final answer
    x = 588,480.97

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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.