Home / 862,756.52-1,189,827.02-540,494.78

Finding the Fourth Proportional to 862,756.52, 1,189,827.02 and 540,494.78

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Solution

The fourth proportional to 862,756.52, 1,189,827.02 and 540,494.78 is: 745,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,756.52 : 1,189,827.02 = 540,494.78 : x
  2. Step 2: Convert to fraction form
    862,756.52/1,189,827.02 = 540,494.78/x
  3. Step 3: Cross multiply
    862,756.52x = 1,189,827.02 × 540,494.78
  4. Step 4: Simplify right side
    862,756.52x = 643,095,288,815.06
  5. Step 5: Solve for x
    x = 643,095,288,815.06/862,756.52
  6. Step 6: Final answer
    x = 745,396.04

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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.