Home / 778,001.40-1,167,002.10-773,086.20

Finding the Fourth Proportional to 778,001.40, 1,167,002.10 and 773,086.20

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Solution

The fourth proportional to 778,001.40, 1,167,002.10 and 773,086.20 is: 1,159,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,001.40 : 1,167,002.10 = 773,086.20 : x
  2. Step 2: Convert to fraction form
    778,001.40/1,167,002.10 = 773,086.20/x
  3. Step 3: Cross multiply
    778,001.40x = 1,167,002.10 × 773,086.20
  4. Step 4: Simplify right side
    778,001.40x = 902,193,218,881.02
  5. Step 5: Solve for x
    x = 902,193,218,881.02/778,001.40
  6. Step 6: Final answer
    x = 1,159,629.30

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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.