Home / 765,642.84-1,056,587.13-426,191.28

Finding the Fourth Proportional to 765,642.84, 1,056,587.13 and 426,191.28

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Solution

The fourth proportional to 765,642.84, 1,056,587.13 and 426,191.28 is: 588,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,642.84 : 1,056,587.13 = 426,191.28 : x
  2. Step 2: Convert to fraction form
    765,642.84/1,056,587.13 = 426,191.28/x
  3. Step 3: Cross multiply
    765,642.84x = 1,056,587.13 × 426,191.28
  4. Step 4: Simplify right side
    765,642.84x = 450,308,221,366.23
  5. Step 5: Solve for x
    x = 450,308,221,366.23/765,642.84
  6. Step 6: Final answer
    x = 588,143.97

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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.