Home / 2,258,657.72-3,387,986.47-661,220.79

Finding the Fourth Proportional to 2,258,657.72, 3,387,986.47 and 661,220.79

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Solution

The fourth proportional to 2,258,657.72, 3,387,986.47 and 661,220.79 is: 991,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258,657.72 : 3,387,986.47 = 661,220.79 : x
  2. Step 2: Convert to fraction form
    2,258,657.72/3,387,986.47 = 661,220.79/x
  3. Step 3: Cross multiply
    2,258,657.72x = 3,387,986.47 × 661,220.79
  4. Step 4: Simplify right side
    2,258,657.72x = 2,240,207,090,202.71
  5. Step 5: Solve for x
    x = 2,240,207,090,202.71/2,258,657.72
  6. Step 6: Final answer
    x = 991,831.15

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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.