Home / 999,112.32-1,498,853.36-316,171.15

Finding the Fourth Proportional to 999,112.32, 1,498,853.36 and 316,171.15

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Solution

The fourth proportional to 999,112.32, 1,498,853.36 and 316,171.15 is: 474,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,112.32 : 1,498,853.36 = 316,171.15 : x
  2. Step 2: Convert to fraction form
    999,112.32/1,498,853.36 = 316,171.15/x
  3. Step 3: Cross multiply
    999,112.32x = 1,498,853.36 × 316,171.15
  4. Step 4: Simplify right side
    999,112.32x = 473,894,187,555.86
  5. Step 5: Solve for x
    x = 473,894,187,555.86/999,112.32
  6. Step 6: Final answer
    x = 474,315.23

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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.