Home / 1,949,129.90-2,921,731.52-812,520.90

Finding the Fourth Proportional to 1,949,129.90, 2,921,731.52 and 812,520.90

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Solution

The fourth proportional to 1,949,129.90, 2,921,731.52 and 812,520.90 is: 1,217,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,129.90 : 2,921,731.52 = 812,520.90 : x
  2. Step 2: Convert to fraction form
    1,949,129.90/2,921,731.52 = 812,520.90/x
  3. Step 3: Cross multiply
    1,949,129.90x = 2,921,731.52 × 812,520.90
  4. Step 4: Simplify right side
    1,949,129.90x = 2,373,967,924,188.77
  5. Step 5: Solve for x
    x = 2,373,967,924,188.77/1,949,129.90
  6. Step 6: Final answer
    x = 1,217,962.91

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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.