Home / 912,122.13-1,258,720.20-504,234.48

Finding the Fourth Proportional to 912,122.13, 1,258,720.20 and 504,234.48

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Solution

The fourth proportional to 912,122.13, 1,258,720.20 and 504,234.48 is: 695,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,122.13 : 1,258,720.20 = 504,234.48 : x
  2. Step 2: Convert to fraction form
    912,122.13/1,258,720.20 = 504,234.48/x
  3. Step 3: Cross multiply
    912,122.13x = 1,258,720.20 × 504,234.48
  4. Step 4: Simplify right side
    912,122.13x = 634,690,125,512.50
  5. Step 5: Solve for x
    x = 634,690,125,512.50/912,122.13
  6. Step 6: Final answer
    x = 695,838.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.