Home / 479,320.66-718,981.23-163,780.66

Finding the Fourth Proportional to 479,320.66, 718,981.23 and 163,780.66

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Solution

The fourth proportional to 479,320.66, 718,981.23 and 163,780.66 is: 245,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,320.66 : 718,981.23 = 163,780.66 : x
  2. Step 2: Convert to fraction form
    479,320.66/718,981.23 = 163,780.66/x
  3. Step 3: Cross multiply
    479,320.66x = 718,981.23 × 163,780.66
  4. Step 4: Simplify right side
    479,320.66x = 117,755,220,377.01
  5. Step 5: Solve for x
    x = 117,755,220,377.01/479,320.66
  6. Step 6: Final answer
    x = 245,671.07

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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.