Home / 1,025,201.20-1,537,801.80-315,228.10

Finding the Fourth Proportional to 1,025,201.20, 1,537,801.80 and 315,228.10

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Solution

The fourth proportional to 1,025,201.20, 1,537,801.80 and 315,228.10 is: 472,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,201.20 : 1,537,801.80 = 315,228.10 : x
  2. Step 2: Convert to fraction form
    1,025,201.20/1,537,801.80 = 315,228.10/x
  3. Step 3: Cross multiply
    1,025,201.20x = 1,537,801.80 × 315,228.10
  4. Step 4: Simplify right side
    1,025,201.20x = 484,758,339,590.58
  5. Step 5: Solve for x
    x = 484,758,339,590.58/1,025,201.20
  6. Step 6: Final answer
    x = 472,842.15

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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.