Home / 861,966.64-1,292,062.80-382,420.27

Finding the Fourth Proportional to 861,966.64, 1,292,062.80 and 382,420.27

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Solution

The fourth proportional to 861,966.64, 1,292,062.80 and 382,420.27 is: 573,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,966.64 : 1,292,062.80 = 382,420.27 : x
  2. Step 2: Convert to fraction form
    861,966.64/1,292,062.80 = 382,420.27/x
  3. Step 3: Cross multiply
    861,966.64x = 1,292,062.80 × 382,420.27
  4. Step 4: Simplify right side
    861,966.64x = 494,111,004,832.96
  5. Step 5: Solve for x
    x = 494,111,004,832.96/861,966.64
  6. Step 6: Final answer
    x = 573,236.81

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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.