Home / 987,862.32-1,481,621.28-277,721.56

Finding the Fourth Proportional to 987,862.32, 1,481,621.28 and 277,721.56

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Solution

The fourth proportional to 987,862.32, 1,481,621.28 and 277,721.56 is: 416,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,862.32 : 1,481,621.28 = 277,721.56 : x
  2. Step 2: Convert to fraction form
    987,862.32/1,481,621.28 = 277,721.56/x
  3. Step 3: Cross multiply
    987,862.32x = 1,481,621.28 × 277,721.56
  4. Step 4: Simplify right side
    987,862.32x = 411,478,173,210.80
  5. Step 5: Solve for x
    x = 411,478,173,210.80/987,862.32
  6. Step 6: Final answer
    x = 416,533.93

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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.