Home / 851,403.68-1,174,990.02-469,429.88

Finding the Fourth Proportional to 851,403.68, 1,174,990.02 and 469,429.88

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Solution

The fourth proportional to 851,403.68, 1,174,990.02 and 469,429.88 is: 647,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,403.68 : 1,174,990.02 = 469,429.88 : x
  2. Step 2: Convert to fraction form
    851,403.68/1,174,990.02 = 469,429.88/x
  3. Step 3: Cross multiply
    851,403.68x = 1,174,990.02 × 469,429.88
  4. Step 4: Simplify right side
    851,403.68x = 551,575,424,089.80
  5. Step 5: Solve for x
    x = 551,575,424,089.80/851,403.68
  6. Step 6: Final answer
    x = 647,842.42

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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.