Home / 852,971.55-1,279,369.41-284,291.20

Finding the Fourth Proportional to 852,971.55, 1,279,369.41 and 284,291.20

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Solution

The fourth proportional to 852,971.55, 1,279,369.41 and 284,291.20 is: 426,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,971.55 : 1,279,369.41 = 284,291.20 : x
  2. Step 2: Convert to fraction form
    852,971.55/1,279,369.41 = 284,291.20/x
  3. Step 3: Cross multiply
    852,971.55x = 1,279,369.41 × 284,291.20
  4. Step 4: Simplify right side
    852,971.55x = 363,713,464,812.19
  5. Step 5: Solve for x
    x = 363,713,464,812.19/852,971.55
  6. Step 6: Final answer
    x = 426,407.50

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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.