Home / 1,680,474.34-2,520,412.62-669,511.72

Finding the Fourth Proportional to 1,680,474.34, 2,520,412.62 and 669,511.72

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Solution

The fourth proportional to 1,680,474.34, 2,520,412.62 and 669,511.72 is: 1,004,148.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,474.34 : 2,520,412.62 = 669,511.72 : x
  2. Step 2: Convert to fraction form
    1,680,474.34/2,520,412.62 = 669,511.72/x
  3. Step 3: Cross multiply
    1,680,474.34x = 2,520,412.62 × 669,511.72
  4. Step 4: Simplify right side
    1,680,474.34x = 1,687,445,788,325.91
  5. Step 5: Solve for x
    x = 1,687,445,788,325.91/1,680,474.34
  6. Step 6: Final answer
    x = 1,004,148.50

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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.