Home / 861,967.81-1,190,267.76-540,230.95

Finding the Fourth Proportional to 861,967.81, 1,190,267.76 and 540,230.95

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Solution

The fourth proportional to 861,967.81, 1,190,267.76 and 540,230.95 is: 745,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,967.81 : 1,190,267.76 = 540,230.95 : x
  2. Step 2: Convert to fraction form
    861,967.81/1,190,267.76 = 540,230.95/x
  3. Step 3: Cross multiply
    861,967.81x = 1,190,267.76 × 540,230.95
  4. Step 4: Simplify right side
    861,967.81x = 643,019,482,739.17
  5. Step 5: Solve for x
    x = 643,019,482,739.17/861,967.81
  6. Step 6: Final answer
    x = 745,990.13

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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.