Home / 575,121.20-861,904.20-508,247.60

Finding the Fourth Proportional to 575,121.20, 861,904.20 and 508,247.60

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Solution

The fourth proportional to 575,121.20, 861,904.20 and 508,247.60 is: 761,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,121.20 : 861,904.20 = 508,247.60 : x
  2. Step 2: Convert to fraction form
    575,121.20/861,904.20 = 508,247.60/x
  3. Step 3: Cross multiply
    575,121.20x = 861,904.20 × 508,247.60
  4. Step 4: Simplify right side
    575,121.20x = 438,060,741,079.92
  5. Step 5: Solve for x
    x = 438,060,741,079.92/575,121.20
  6. Step 6: Final answer
    x = 761,684.22

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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.