Home / 486,445.20-671,101.38-325,044.60

Finding the Fourth Proportional to 486,445.20, 671,101.38 and 325,044.60

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Solution

The fourth proportional to 486,445.20, 671,101.38 and 325,044.60 is: 448,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,445.20 : 671,101.38 = 325,044.60 : x
  2. Step 2: Convert to fraction form
    486,445.20/671,101.38 = 325,044.60/x
  3. Step 3: Cross multiply
    486,445.20x = 671,101.38 × 325,044.60
  4. Step 4: Simplify right side
    486,445.20x = 218,137,879,621.55
  5. Step 5: Solve for x
    x = 218,137,879,621.55/486,445.20
  6. Step 6: Final answer
    x = 448,432.59

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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.