Home / 3,120,155.10-4,680,232.65-1,523,742.30

Finding the Fourth Proportional to 3,120,155.10, 4,680,232.65 and 1,523,742.30

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Solution

The fourth proportional to 3,120,155.10, 4,680,232.65 and 1,523,742.30 is: 2,285,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,155.10 : 4,680,232.65 = 1,523,742.30 : x
  2. Step 2: Convert to fraction form
    3,120,155.10/4,680,232.65 = 1,523,742.30/x
  3. Step 3: Cross multiply
    3,120,155.10x = 4,680,232.65 × 1,523,742.30
  4. Step 4: Simplify right side
    3,120,155.10x = 7,131,468,462,646.10
  5. Step 5: Solve for x
    x = 7,131,468,462,646.10/3,120,155.10
  6. Step 6: Final answer
    x = 2,285,613.45

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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.