Home / 1,520,031.69-2,278,759.79-666,456.45

Finding the Fourth Proportional to 1,520,031.69, 2,278,759.79 and 666,456.45

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Solution

The fourth proportional to 1,520,031.69, 2,278,759.79 and 666,456.45 is: 999,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,031.69 : 2,278,759.79 = 666,456.45 : x
  2. Step 2: Convert to fraction form
    1,520,031.69/2,278,759.79 = 666,456.45/x
  3. Step 3: Cross multiply
    1,520,031.69x = 2,278,759.79 × 666,456.45
  4. Step 4: Simplify right side
    1,520,031.69x = 1,518,694,156,713.86
  5. Step 5: Solve for x
    x = 1,518,694,156,713.86/1,520,031.69
  6. Step 6: Final answer
    x = 999,120.06

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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.