Home / 1,432,230.40-1,976,497.53-820,382.82

Finding the Fourth Proportional to 1,432,230.40, 1,976,497.53 and 820,382.82

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Solution

The fourth proportional to 1,432,230.40, 1,976,497.53 and 820,382.82 is: 1,132,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,230.40 : 1,976,497.53 = 820,382.82 : x
  2. Step 2: Convert to fraction form
    1,432,230.40/1,976,497.53 = 820,382.82/x
  3. Step 3: Cross multiply
    1,432,230.40x = 1,976,497.53 × 820,382.82
  4. Step 4: Simplify right side
    1,432,230.40x = 1,621,484,617,384.43
  5. Step 5: Solve for x
    x = 1,621,484,617,384.43/1,432,230.40
  6. Step 6: Final answer
    x = 1,132,139.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.