Home / 1,230,988.02-1,699,046.87-721,854.42

Finding the Fourth Proportional to 1,230,988.02, 1,699,046.87 and 721,854.42

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Solution

The fourth proportional to 1,230,988.02, 1,699,046.87 and 721,854.42 is: 996,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,988.02 : 1,699,046.87 = 721,854.42 : x
  2. Step 2: Convert to fraction form
    1,230,988.02/1,699,046.87 = 721,854.42/x
  3. Step 3: Cross multiply
    1,230,988.02x = 1,699,046.87 × 721,854.42
  4. Step 4: Simplify right side
    1,230,988.02x = 1,226,464,489,287.39
  5. Step 5: Solve for x
    x = 1,226,464,489,287.39/1,230,988.02
  6. Step 6: Final answer
    x = 996,325.28

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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.