Home / 871,480.20-1,303,721.10-754,451.40

Finding the Fourth Proportional to 871,480.20, 1,303,721.10 and 754,451.40

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Solution

The fourth proportional to 871,480.20, 1,303,721.10 and 754,451.40 is: 1,128,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,480.20 : 1,303,721.10 = 754,451.40 : x
  2. Step 2: Convert to fraction form
    871,480.20/1,303,721.10 = 754,451.40/x
  3. Step 3: Cross multiply
    871,480.20x = 1,303,721.10 × 754,451.40
  4. Step 4: Simplify right side
    871,480.20x = 983,594,209,104.54
  5. Step 5: Solve for x
    x = 983,594,209,104.54/871,480.20
  6. Step 6: Final answer
    x = 1,128,647.80

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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.