Home / 786,209.40-1,179,314.10-366,305.40

Finding the Fourth Proportional to 786,209.40, 1,179,314.10 and 366,305.40

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Solution

The fourth proportional to 786,209.40, 1,179,314.10 and 366,305.40 is: 549,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,209.40 : 1,179,314.10 = 366,305.40 : x
  2. Step 2: Convert to fraction form
    786,209.40/1,179,314.10 = 366,305.40/x
  3. Step 3: Cross multiply
    786,209.40x = 1,179,314.10 × 366,305.40
  4. Step 4: Simplify right side
    786,209.40x = 431,989,123,126.14
  5. Step 5: Solve for x
    x = 431,989,123,126.14/786,209.40
  6. Step 6: Final answer
    x = 549,458.10

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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.