Home / 1,499,230.40-2,068,986.87-820,166.90

Finding the Fourth Proportional to 1,499,230.40, 2,068,986.87 and 820,166.90

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Solution

The fourth proportional to 1,499,230.40, 2,068,986.87 and 820,166.90 is: 1,131,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499,230.40 : 2,068,986.87 = 820,166.90 : x
  2. Step 2: Convert to fraction form
    1,499,230.40/2,068,986.87 = 820,166.90/x
  3. Step 3: Cross multiply
    1,499,230.40x = 2,068,986.87 × 820,166.90
  4. Step 4: Simplify right side
    1,499,230.40x = 1,696,914,543,207.77
  5. Step 5: Solve for x
    x = 1,696,914,543,207.77/1,499,230.40
  6. Step 6: Final answer
    x = 1,131,857.08

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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.