Home / 929,278.88-1,393,924.80-368,311.76

Finding the Fourth Proportional to 929,278.88, 1,393,924.80 and 368,311.76

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Solution

The fourth proportional to 929,278.88, 1,393,924.80 and 368,311.76 is: 552,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,278.88 : 1,393,924.80 = 368,311.76 : x
  2. Step 2: Convert to fraction form
    929,278.88/1,393,924.80 = 368,311.76/x
  3. Step 3: Cross multiply
    929,278.88x = 1,393,924.80 × 368,311.76
  4. Step 4: Simplify right side
    929,278.88x = 513,398,896,395.65
  5. Step 5: Solve for x
    x = 513,398,896,395.65/929,278.88
  6. Step 6: Final answer
    x = 552,470.21

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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.