Home / 980,623.77-1,471,031.28-381,633.63

Finding the Fourth Proportional to 980,623.77, 1,471,031.28 and 381,633.63

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Solution

The fourth proportional to 980,623.77, 1,471,031.28 and 381,633.63 is: 572,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,623.77 : 1,471,031.28 = 381,633.63 : x
  2. Step 2: Convert to fraction form
    980,623.77/1,471,031.28 = 381,633.63/x
  3. Step 3: Cross multiply
    980,623.77x = 1,471,031.28 × 381,633.63
  4. Step 4: Simplify right side
    980,623.77x = 561,395,007,229.95
  5. Step 5: Solve for x
    x = 561,395,007,229.95/980,623.77
  6. Step 6: Final answer
    x = 572,487.66

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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.