Home / 761,127.15-1,140,476.28-557,780.88

Finding the Fourth Proportional to 761,127.15, 1,140,476.28 and 557,780.88

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Solution

The fourth proportional to 761,127.15, 1,140,476.28 and 557,780.88 is: 835,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,127.15 : 1,140,476.28 = 557,780.88 : x
  2. Step 2: Convert to fraction form
    761,127.15/1,140,476.28 = 557,780.88/x
  3. Step 3: Cross multiply
    761,127.15x = 1,140,476.28 × 557,780.88
  4. Step 4: Simplify right side
    761,127.15x = 636,135,863,077.53
  5. Step 5: Solve for x
    x = 636,135,863,077.53/761,127.15
  6. Step 6: Final answer
    x = 835,781.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.