Home / 1,279,818.50-1,920,043.50-381,256.74

Finding the Fourth Proportional to 1,279,818.50, 1,920,043.50 and 381,256.74

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Solution

The fourth proportional to 1,279,818.50, 1,920,043.50 and 381,256.74 is: 571,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,818.50 : 1,920,043.50 = 381,256.74 : x
  2. Step 2: Convert to fraction form
    1,279,818.50/1,920,043.50 = 381,256.74/x
  3. Step 3: Cross multiply
    1,279,818.50x = 1,920,043.50 × 381,256.74
  4. Step 4: Simplify right side
    1,279,818.50x = 732,029,525,468.19
  5. Step 5: Solve for x
    x = 732,029,525,468.19/1,279,818.50
  6. Step 6: Final answer
    x = 571,979.17

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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.