Home / 739,972.44-1,109,509.20-290,154.40

Finding the Fourth Proportional to 739,972.44, 1,109,509.20 and 290,154.40

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Solution

The fourth proportional to 739,972.44, 1,109,509.20 and 290,154.40 is: 435,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,972.44 : 1,109,509.20 = 290,154.40 : x
  2. Step 2: Convert to fraction form
    739,972.44/1,109,509.20 = 290,154.40/x
  3. Step 3: Cross multiply
    739,972.44x = 1,109,509.20 × 290,154.40
  4. Step 4: Simplify right side
    739,972.44x = 321,928,976,220.48
  5. Step 5: Solve for x
    x = 321,928,976,220.48/739,972.44
  6. Step 6: Final answer
    x = 435,055.36

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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.