Home / 1,276,377.12-1,761,400.40-703,417.28

Finding the Fourth Proportional to 1,276,377.12, 1,761,400.40 and 703,417.28

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Solution

The fourth proportional to 1,276,377.12, 1,761,400.40 and 703,417.28 is: 970,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,377.12 : 1,761,400.40 = 703,417.28 : x
  2. Step 2: Convert to fraction form
    1,276,377.12/1,761,400.40 = 703,417.28/x
  3. Step 3: Cross multiply
    1,276,377.12x = 1,761,400.40 × 703,417.28
  4. Step 4: Simplify right side
    1,276,377.12x = 1,238,999,478,358.91
  5. Step 5: Solve for x
    x = 1,238,999,478,358.91/1,276,377.12
  6. Step 6: Final answer
    x = 970,715.83

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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.