Home / 645,959.04-968,939.28-290,906.88

Finding the Fourth Proportional to 645,959.04, 968,939.28 and 290,906.88

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Solution

The fourth proportional to 645,959.04, 968,939.28 and 290,906.88 is: 436,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,959.04 : 968,939.28 = 290,906.88 : x
  2. Step 2: Convert to fraction form
    645,959.04/968,939.28 = 290,906.88/x
  3. Step 3: Cross multiply
    645,959.04x = 968,939.28 × 290,906.88
  4. Step 4: Simplify right side
    645,959.04x = 281,871,102,854.25
  5. Step 5: Solve for x
    x = 281,871,102,854.25/645,959.04
  6. Step 6: Final answer
    x = 436,360.64

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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.