Home / 814,519.80-1,221,779.70-751,534.20

Finding the Fourth Proportional to 814,519.80, 1,221,779.70 and 751,534.20

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Solution

The fourth proportional to 814,519.80, 1,221,779.70 and 751,534.20 is: 1,127,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,519.80 : 1,221,779.70 = 751,534.20 : x
  2. Step 2: Convert to fraction form
    814,519.80/1,221,779.70 = 751,534.20/x
  3. Step 3: Cross multiply
    814,519.80x = 1,221,779.70 × 751,534.20
  4. Step 4: Simplify right side
    814,519.80x = 918,209,229,415.74
  5. Step 5: Solve for x
    x = 918,209,229,415.74/814,519.80
  6. Step 6: Final answer
    x = 1,127,301.30

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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.