Home / 852,921.60-1,279,382.40-433,017.60

Finding the Fourth Proportional to 852,921.60, 1,279,382.40 and 433,017.60

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Solution

The fourth proportional to 852,921.60, 1,279,382.40 and 433,017.60 is: 649,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,921.60 : 1,279,382.40 = 433,017.60 : x
  2. Step 2: Convert to fraction form
    852,921.60/1,279,382.40 = 433,017.60/x
  3. Step 3: Cross multiply
    852,921.60x = 1,279,382.40 × 433,017.60
  4. Step 4: Simplify right side
    852,921.60x = 553,995,096,330.24
  5. Step 5: Solve for x
    x = 553,995,096,330.24/852,921.60
  6. Step 6: Final answer
    x = 649,526.40

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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.