Home / 852,055.60-1,278,083.40-253,109.20

Finding the Fourth Proportional to 852,055.60, 1,278,083.40 and 253,109.20

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Solution

The fourth proportional to 852,055.60, 1,278,083.40 and 253,109.20 is: 379,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,055.60 : 1,278,083.40 = 253,109.20 : x
  2. Step 2: Convert to fraction form
    852,055.60/1,278,083.40 = 253,109.20/x
  3. Step 3: Cross multiply
    852,055.60x = 1,278,083.40 × 253,109.20
  4. Step 4: Simplify right side
    852,055.60x = 323,494,666,907.28
  5. Step 5: Solve for x
    x = 323,494,666,907.28/852,055.60
  6. Step 6: Final answer
    x = 379,663.80

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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.