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Finding the Fourth Proportional to 556,171.43, 767,522.49 and 326,738.28

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Solution

The fourth proportional to 556,171.43, 767,522.49 and 326,738.28 is: 450,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,171.43 : 767,522.49 = 326,738.28 : x
  2. Step 2: Convert to fraction form
    556,171.43/767,522.49 = 326,738.28/x
  3. Step 3: Cross multiply
    556,171.43x = 767,522.49 × 326,738.28
  4. Step 4: Simplify right side
    556,171.43x = 250,778,978,243.92
  5. Step 5: Solve for x
    x = 250,778,978,243.92/556,171.43
  6. Step 6: Final answer
    x = 450,902.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.