Home / 492,931.40-739,528.10-155,978.04

Finding the Fourth Proportional to 492,931.40, 739,528.10 and 155,978.04

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Solution

The fourth proportional to 492,931.40, 739,528.10 and 155,978.04 is: 234,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,931.40 : 739,528.10 = 155,978.04 : x
  2. Step 2: Convert to fraction form
    492,931.40/739,528.10 = 155,978.04/x
  3. Step 3: Cross multiply
    492,931.40x = 739,528.10 × 155,978.04
  4. Step 4: Simplify right side
    492,931.40x = 115,350,143,562.92
  5. Step 5: Solve for x
    x = 115,350,143,562.92/492,931.40
  6. Step 6: Final answer
    x = 234,008.51

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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.