Home / 4,752,078.60-7,128,117.90-3,240,424.20

Finding the Fourth Proportional to 4,752,078.60, 7,128,117.90 and 3,240,424.20

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Solution

The fourth proportional to 4,752,078.60, 7,128,117.90 and 3,240,424.20 is: 4,860,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752,078.60 : 7,128,117.90 = 3,240,424.20 : x
  2. Step 2: Convert to fraction form
    4,752,078.60/7,128,117.90 = 3,240,424.20/x
  3. Step 3: Cross multiply
    4,752,078.60x = 7,128,117.90 × 3,240,424.20
  4. Step 4: Simplify right side
    4,752,078.60x = 23,098,125,743,613.18
  5. Step 5: Solve for x
    x = 23,098,125,743,613.18/4,752,078.60
  6. Step 6: Final answer
    x = 4,860,636.30

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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.