Home / 1,630,215.60-2,445,431.40-432,121.20

Finding the Fourth Proportional to 1,630,215.60, 2,445,431.40 and 432,121.20

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Solution

The fourth proportional to 1,630,215.60, 2,445,431.40 and 432,121.20 is: 648,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,215.60 : 2,445,431.40 = 432,121.20 : x
  2. Step 2: Convert to fraction form
    1,630,215.60/2,445,431.40 = 432,121.20/x
  3. Step 3: Cross multiply
    1,630,215.60x = 2,445,431.40 × 432,121.20
  4. Step 4: Simplify right side
    1,630,215.60x = 1,056,722,751,085.68
  5. Step 5: Solve for x
    x = 1,056,722,751,085.68/1,630,215.60
  6. Step 6: Final answer
    x = 648,210.43

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Double scale
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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.