Home / 739,961.20-1,109,455.80-290,411.20

Finding the Fourth Proportional to 739,961.20, 1,109,455.80 and 290,411.20

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Solution

The fourth proportional to 739,961.20, 1,109,455.80 and 290,411.20 is: 435,426.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,961.20 : 1,109,455.80 = 290,411.20 : x
  2. Step 2: Convert to fraction form
    739,961.20/1,109,455.80 = 290,411.20/x
  3. Step 3: Cross multiply
    739,961.20x = 1,109,455.80 × 290,411.20
  4. Step 4: Simplify right side
    739,961.20x = 322,198,390,224.96
  5. Step 5: Solve for x
    x = 322,198,390,224.96/739,961.20
  6. Step 6: Final answer
    x = 435,426.06

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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.