Home / 999,626.40-1,499,002.20-400,388.40

Finding the Fourth Proportional to 999,626.40, 1,499,002.20 and 400,388.40

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Solution

The fourth proportional to 999,626.40, 1,499,002.20 and 400,388.40 is: 600,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,626.40 : 1,499,002.20 = 400,388.40 : x
  2. Step 2: Convert to fraction form
    999,626.40/1,499,002.20 = 400,388.40/x
  3. Step 3: Cross multiply
    999,626.40x = 1,499,002.20 × 400,388.40
  4. Step 4: Simplify right side
    999,626.40x = 600,183,092,454.48
  5. Step 5: Solve for x
    x = 600,183,092,454.48/999,626.40
  6. Step 6: Final answer
    x = 600,407.40

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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.