Home / 827,153.40-1,240,730.10-472,203.30

Finding the Fourth Proportional to 827,153.40, 1,240,730.10 and 472,203.30

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Solution

The fourth proportional to 827,153.40, 1,240,730.10 and 472,203.30 is: 708,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,153.40 : 1,240,730.10 = 472,203.30 : x
  2. Step 2: Convert to fraction form
    827,153.40/1,240,730.10 = 472,203.30/x
  3. Step 3: Cross multiply
    827,153.40x = 1,240,730.10 × 472,203.30
  4. Step 4: Simplify right side
    827,153.40x = 585,876,847,629.33
  5. Step 5: Solve for x
    x = 585,876,847,629.33/827,153.40
  6. Step 6: Final answer
    x = 708,304.95

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Double scale
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Similar ratio
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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.