Home / 866,055.48-1,195,149.20-478,880.88

Finding the Fourth Proportional to 866,055.48, 1,195,149.20 and 478,880.88

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Solution

The fourth proportional to 866,055.48, 1,195,149.20 and 478,880.88 is: 660,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,055.48 : 1,195,149.20 = 478,880.88 : x
  2. Step 2: Convert to fraction form
    866,055.48/1,195,149.20 = 478,880.88/x
  3. Step 3: Cross multiply
    866,055.48x = 1,195,149.20 × 478,880.88
  4. Step 4: Simplify right side
    866,055.48x = 572,334,100,627.30
  5. Step 5: Solve for x
    x = 572,334,100,627.30/866,055.48
  6. Step 6: Final answer
    x = 660,851.54

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Double scale
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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.