Home / 891,699.20-1,337,721.60-386,259.20

Finding the Fourth Proportional to 891,699.20, 1,337,721.60 and 386,259.20

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Solution

The fourth proportional to 891,699.20, 1,337,721.60 and 386,259.20 is: 579,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,699.20 : 1,337,721.60 = 386,259.20 : x
  2. Step 2: Convert to fraction form
    891,699.20/1,337,721.60 = 386,259.20/x
  3. Step 3: Cross multiply
    891,699.20x = 1,337,721.60 × 386,259.20
  4. Step 4: Simplify right side
    891,699.20x = 516,707,275,038.72
  5. Step 5: Solve for x
    x = 516,707,275,038.72/891,699.20
  6. Step 6: Final answer
    x = 579,463.65

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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.