Home / 668,856.30-1,003,612.50-313,899.18

Finding the Fourth Proportional to 668,856.30, 1,003,612.50 and 313,899.18

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Solution

The fourth proportional to 668,856.30, 1,003,612.50 and 313,899.18 is: 471,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,856.30 : 1,003,612.50 = 313,899.18 : x
  2. Step 2: Convert to fraction form
    668,856.30/1,003,612.50 = 313,899.18/x
  3. Step 3: Cross multiply
    668,856.30x = 1,003,612.50 × 313,899.18
  4. Step 4: Simplify right side
    668,856.30x = 315,033,140,787.75
  5. Step 5: Solve for x
    x = 315,033,140,787.75/668,856.30
  6. Step 6: Final answer
    x = 471,002.73

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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.