Home / 1,276,740.31-1,761,900.80-695,964.55

Finding the Fourth Proportional to 1,276,740.31, 1,761,900.80 and 695,964.55

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Solution

The fourth proportional to 1,276,740.31, 1,761,900.80 and 695,964.55 is: 960,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,740.31 : 1,761,900.80 = 695,964.55 : x
  2. Step 2: Convert to fraction form
    1,276,740.31/1,761,900.80 = 695,964.55/x
  3. Step 3: Cross multiply
    1,276,740.31x = 1,761,900.80 × 695,964.55
  4. Step 4: Simplify right side
    1,276,740.31x = 1,226,220,497,416.64
  5. Step 5: Solve for x
    x = 1,226,220,497,416.64/1,276,740.31
  6. Step 6: Final answer
    x = 960,430.63

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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.