Home / 862,150.65-1,189,721.02-474,890.60

Finding the Fourth Proportional to 862,150.65, 1,189,721.02 and 474,890.60

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Solution

The fourth proportional to 862,150.65, 1,189,721.02 and 474,890.60 is: 655,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,150.65 : 1,189,721.02 = 474,890.60 : x
  2. Step 2: Convert to fraction form
    862,150.65/1,189,721.02 = 474,890.60/x
  3. Step 3: Cross multiply
    862,150.65x = 1,189,721.02 × 474,890.60
  4. Step 4: Simplify right side
    862,150.65x = 564,987,329,020.41
  5. Step 5: Solve for x
    x = 564,987,329,020.41/862,150.65
  6. Step 6: Final answer
    x = 655,323.21

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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.