Home / 991,633.44-1,369,113.12-761,781.36

Finding the Fourth Proportional to 991,633.44, 1,369,113.12 and 761,781.36

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Solution

The fourth proportional to 991,633.44, 1,369,113.12 and 761,781.36 is: 1,051,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,633.44 : 1,369,113.12 = 761,781.36 : x
  2. Step 2: Convert to fraction form
    991,633.44/1,369,113.12 = 761,781.36/x
  3. Step 3: Cross multiply
    991,633.44x = 1,369,113.12 × 761,781.36
  4. Step 4: Simplify right side
    991,633.44x = 1,042,964,854,547.44
  5. Step 5: Solve for x
    x = 1,042,964,854,547.44/991,633.44
  6. Step 6: Final answer
    x = 1,051,764.51

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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.