Home / 781,386.28-1,170,562.85-575,847.65

Finding the Fourth Proportional to 781,386.28, 1,170,562.85 and 575,847.65

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Solution

The fourth proportional to 781,386.28, 1,170,562.85 and 575,847.65 is: 862,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,386.28 : 1,170,562.85 = 575,847.65 : x
  2. Step 2: Convert to fraction form
    781,386.28/1,170,562.85 = 575,847.65/x
  3. Step 3: Cross multiply
    781,386.28x = 1,170,562.85 × 575,847.65
  4. Step 4: Simplify right side
    781,386.28x = 674,065,862,007.36
  5. Step 5: Solve for x
    x = 674,065,862,007.36/781,386.28
  6. Step 6: Final answer
    x = 862,653.82

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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.