Home / 874,439.12-1,311,693.24-243,408.08

Finding the Fourth Proportional to 874,439.12, 1,311,693.24 and 243,408.08

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Solution

The fourth proportional to 874,439.12, 1,311,693.24 and 243,408.08 is: 365,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,439.12 : 1,311,693.24 = 243,408.08 : x
  2. Step 2: Convert to fraction form
    874,439.12/1,311,693.24 = 243,408.08/x
  3. Step 3: Cross multiply
    874,439.12x = 1,311,693.24 × 243,408.08
  4. Step 4: Simplify right side
    874,439.12x = 319,276,733,097.38
  5. Step 5: Solve for x
    x = 319,276,733,097.38/874,439.12
  6. Step 6: Final answer
    x = 365,121.74

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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.