Home / 872,144.01-1,203,498.81-490,228.20

Finding the Fourth Proportional to 872,144.01, 1,203,498.81 and 490,228.20

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Solution

The fourth proportional to 872,144.01, 1,203,498.81 and 490,228.20 is: 676,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,144.01 : 1,203,498.81 = 490,228.20 : x
  2. Step 2: Convert to fraction form
    872,144.01/1,203,498.81 = 490,228.20/x
  3. Step 3: Cross multiply
    872,144.01x = 1,203,498.81 × 490,228.20
  4. Step 4: Simplify right side
    872,144.01x = 589,989,055,328.44
  5. Step 5: Solve for x
    x = 589,989,055,328.44/872,144.01
  6. Step 6: Final answer
    x = 676,481.23

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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.