Home / 738,140.10-1,107,210.15-731,919.30

Finding the Fourth Proportional to 738,140.10, 1,107,210.15 and 731,919.30

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Solution

The fourth proportional to 738,140.10, 1,107,210.15 and 731,919.30 is: 1,097,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.10 : 1,107,210.15 = 731,919.30 : x
  2. Step 2: Convert to fraction form
    738,140.10/1,107,210.15 = 731,919.30/x
  3. Step 3: Cross multiply
    738,140.10x = 1,107,210.15 × 731,919.30
  4. Step 4: Simplify right side
    738,140.10x = 810,388,477,940.90
  5. Step 5: Solve for x
    x = 810,388,477,940.90/738,140.10
  6. Step 6: Final answer
    x = 1,097,878.95

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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.