Home / 1,276,315.75-1,761,315.71-703,355.91

Finding the Fourth Proportional to 1,276,315.75, 1,761,315.71 and 703,355.91

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Solution

The fourth proportional to 1,276,315.75, 1,761,315.71 and 703,355.91 is: 970,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,315.75 : 1,761,315.71 = 703,355.91 : x
  2. Step 2: Convert to fraction form
    1,276,315.75/1,761,315.71 = 703,355.91/x
  3. Step 3: Cross multiply
    1,276,315.75x = 1,761,315.71 × 703,355.91
  4. Step 4: Simplify right side
    1,276,315.75x = 1,238,831,803,882.63
  5. Step 5: Solve for x
    x = 1,238,831,803,882.63/1,276,315.75
  6. Step 6: Final answer
    x = 970,631.13

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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.