Home / 987,320.80-1,480,981.20-239,366.80

Finding the Fourth Proportional to 987,320.80, 1,480,981.20 and 239,366.80

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Solution

The fourth proportional to 987,320.80, 1,480,981.20 and 239,366.80 is: 359,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,320.80 : 1,480,981.20 = 239,366.80 : x
  2. Step 2: Convert to fraction form
    987,320.80/1,480,981.20 = 239,366.80/x
  3. Step 3: Cross multiply
    987,320.80x = 1,480,981.20 × 239,366.80
  4. Step 4: Simplify right side
    987,320.80x = 354,497,730,704.16
  5. Step 5: Solve for x
    x = 354,497,730,704.16/987,320.80
  6. Step 6: Final answer
    x = 359,050.20

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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.