Home / 862,129.02-1,189,737.24-499,762.74

Finding the Fourth Proportional to 862,129.02, 1,189,737.24 and 499,762.74

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Solution

The fourth proportional to 862,129.02, 1,189,737.24 and 499,762.74 is: 689,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,129.02 : 1,189,737.24 = 499,762.74 : x
  2. Step 2: Convert to fraction form
    862,129.02/1,189,737.24 = 499,762.74/x
  3. Step 3: Cross multiply
    862,129.02x = 1,189,737.24 × 499,762.74
  4. Step 4: Simplify right side
    862,129.02x = 594,586,342,942.44
  5. Step 5: Solve for x
    x = 594,586,342,942.44/862,129.02
  6. Step 6: Final answer
    x = 689,672.11

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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.