Home / 1,312,905.30-1,969,329.15-366,249.30

Finding the Fourth Proportional to 1,312,905.30, 1,969,329.15 and 366,249.30

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Solution

The fourth proportional to 1,312,905.30, 1,969,329.15 and 366,249.30 is: 549,365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,905.30 : 1,969,329.15 = 366,249.30 : x
  2. Step 2: Convert to fraction form
    1,312,905.30/1,969,329.15 = 366,249.30/x
  3. Step 3: Cross multiply
    1,312,905.30x = 1,969,329.15 × 366,249.30
  4. Step 4: Simplify right side
    1,312,905.30x = 721,265,422,657.10
  5. Step 5: Solve for x
    x = 721,265,422,657.10/1,312,905.30
  6. Step 6: Final answer
    x = 549,365.92

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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.