Home / 646,127.38-891,655.68-359,641.36

Finding the Fourth Proportional to 646,127.38, 891,655.68 and 359,641.36

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Solution

The fourth proportional to 646,127.38, 891,655.68 and 359,641.36 is: 496,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,127.38 : 891,655.68 = 359,641.36 : x
  2. Step 2: Convert to fraction form
    646,127.38/891,655.68 = 359,641.36/x
  3. Step 3: Cross multiply
    646,127.38x = 891,655.68 × 359,641.36
  4. Step 4: Simplify right side
    646,127.38x = 320,676,261,406.93
  5. Step 5: Solve for x
    x = 320,676,261,406.93/646,127.38
  6. Step 6: Final answer
    x = 496,305.02

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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.