Home / 646,831.80-969,902.10-272,431.80

Finding the Fourth Proportional to 646,831.80, 969,902.10 and 272,431.80

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Solution

The fourth proportional to 646,831.80, 969,902.10 and 272,431.80 is: 408,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,831.80 : 969,902.10 = 272,431.80 : x
  2. Step 2: Convert to fraction form
    646,831.80/969,902.10 = 272,431.80/x
  3. Step 3: Cross multiply
    646,831.80x = 969,902.10 × 272,431.80
  4. Step 4: Simplify right side
    646,831.80x = 264,232,174,926.78
  5. Step 5: Solve for x
    x = 264,232,174,926.78/646,831.80
  6. Step 6: Final answer
    x = 408,502.14

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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.