Home / 849,560.80-1,274,420.40-280,944.16

Finding the Fourth Proportional to 849,560.80, 1,274,420.40 and 280,944.16

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Solution

The fourth proportional to 849,560.80, 1,274,420.40 and 280,944.16 is: 421,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,560.80 : 1,274,420.40 = 280,944.16 : x
  2. Step 2: Convert to fraction form
    849,560.80/1,274,420.40 = 280,944.16/x
  3. Step 3: Cross multiply
    849,560.80x = 1,274,420.40 × 280,944.16
  4. Step 4: Simplify right side
    849,560.80x = 358,040,968,764.86
  5. Step 5: Solve for x
    x = 358,040,968,764.86/849,560.80
  6. Step 6: Final answer
    x = 421,442.43

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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.