Home / 1,680,364.80-2,520,704.16-669,242.88

Finding the Fourth Proportional to 1,680,364.80, 2,520,704.16 and 669,242.88

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Solution

The fourth proportional to 1,680,364.80, 2,520,704.16 and 669,242.88 is: 1,003,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,364.80 : 2,520,704.16 = 669,242.88 : x
  2. Step 2: Convert to fraction form
    1,680,364.80/2,520,704.16 = 669,242.88/x
  3. Step 3: Cross multiply
    1,680,364.80x = 2,520,704.16 × 669,242.88
  4. Step 4: Simplify right side
    1,680,364.80x = 1,686,963,311,666.38
  5. Step 5: Solve for x
    x = 1,686,963,311,666.38/1,680,364.80
  6. Step 6: Final answer
    x = 1,003,926.83

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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.