Home / 852,978.80-1,279,380.29-284,298.45

Finding the Fourth Proportional to 852,978.80, 1,279,380.29 and 284,298.45

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Solution

The fourth proportional to 852,978.80, 1,279,380.29 and 284,298.45 is: 426,418.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,978.80 : 1,279,380.29 = 284,298.45 : x
  2. Step 2: Convert to fraction form
    852,978.80/1,279,380.29 = 284,298.45/x
  3. Step 3: Cross multiply
    852,978.80x = 1,279,380.29 × 284,298.45
  4. Step 4: Simplify right side
    852,978.80x = 363,725,831,986.06
  5. Step 5: Solve for x
    x = 363,725,831,986.06/852,978.80
  6. Step 6: Final answer
    x = 426,418.38

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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.