Home / 947,794.07-1,421,691.10-379,431.05

Finding the Fourth Proportional to 947,794.07, 1,421,691.10 and 379,431.05

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Solution

The fourth proportional to 947,794.07, 1,421,691.10 and 379,431.05 is: 569,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,794.07 : 1,421,691.10 = 379,431.05 : x
  2. Step 2: Convert to fraction form
    947,794.07/1,421,691.10 = 379,431.05/x
  3. Step 3: Cross multiply
    947,794.07x = 1,421,691.10 × 379,431.05
  4. Step 4: Simplify right side
    947,794.07x = 539,433,739,740.20
  5. Step 5: Solve for x
    x = 539,433,739,740.20/947,794.07
  6. Step 6: Final answer
    x = 569,146.57

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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.