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Finding the Fourth Proportional to 610,863.20, 917,169.60 and 462,147.20

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Solution

The fourth proportional to 610,863.20, 917,169.60 and 462,147.20 is: 693,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,863.20 : 917,169.60 = 462,147.20 : x
  2. Step 2: Convert to fraction form
    610,863.20/917,169.60 = 462,147.20/x
  3. Step 3: Cross multiply
    610,863.20x = 917,169.60 × 462,147.20
  4. Step 4: Simplify right side
    610,863.20x = 423,867,362,565.12
  5. Step 5: Solve for x
    x = 423,867,362,565.12/610,863.20
  6. Step 6: Final answer
    x = 693,882.63

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1.5x scale

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.