Home / 739,974.94-1,109,512.95-290,156.90

Finding the Fourth Proportional to 739,974.94, 1,109,512.95 and 290,156.90

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Solution

The fourth proportional to 739,974.94, 1,109,512.95 and 290,156.90 is: 435,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,974.94 : 1,109,512.95 = 290,156.90 : x
  2. Step 2: Convert to fraction form
    739,974.94/1,109,512.95 = 290,156.90/x
  3. Step 3: Cross multiply
    739,974.94x = 1,109,512.95 × 290,156.90
  4. Step 4: Simplify right side
    739,974.94x = 321,932,838,081.86
  5. Step 5: Solve for x
    x = 321,932,838,081.86/739,974.94
  6. Step 6: Final answer
    x = 435,059.11

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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.