Home / 913,919.94-1,260,812.45-551,142.20

Finding the Fourth Proportional to 913,919.94, 1,260,812.45 and 551,142.20

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Solution

The fourth proportional to 913,919.94, 1,260,812.45 and 551,142.20 is: 760,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,919.94 : 1,260,812.45 = 551,142.20 : x
  2. Step 2: Convert to fraction form
    913,919.94/1,260,812.45 = 551,142.20/x
  3. Step 3: Cross multiply
    913,919.94x = 1,260,812.45 × 551,142.20
  4. Step 4: Simplify right side
    913,919.94x = 694,886,941,176.33
  5. Step 5: Solve for x
    x = 694,886,941,176.33/913,919.94
  6. Step 6: Final answer
    x = 760,336.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.