Home / 1,680,411.87-2,520,619.33-720,244.38

Finding the Fourth Proportional to 1,680,411.87, 2,520,619.33 and 720,244.38

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Solution

The fourth proportional to 1,680,411.87, 2,520,619.33 and 720,244.38 is: 1,080,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,411.87 : 2,520,619.33 = 720,244.38 : x
  2. Step 2: Convert to fraction form
    1,680,411.87/2,520,619.33 = 720,244.38/x
  3. Step 3: Cross multiply
    1,680,411.87x = 2,520,619.33 × 720,244.38
  4. Step 4: Simplify right side
    1,680,411.87x = 1,815,461,890,347.55
  5. Step 5: Solve for x
    x = 1,815,461,890,347.55/1,680,411.87
  6. Step 6: Final answer
    x = 1,080,367.21

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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.