Home / 1,422,980.54-1,963,398.47-871,812.69

Finding the Fourth Proportional to 1,422,980.54, 1,963,398.47 and 871,812.69

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Solution

The fourth proportional to 1,422,980.54, 1,963,398.47 and 871,812.69 is: 1,202,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,980.54 : 1,963,398.47 = 871,812.69 : x
  2. Step 2: Convert to fraction form
    1,422,980.54/1,963,398.47 = 871,812.69/x
  3. Step 3: Cross multiply
    1,422,980.54x = 1,963,398.47 × 871,812.69
  4. Step 4: Simplify right side
    1,422,980.54x = 1,711,715,701,672.58
  5. Step 5: Solve for x
    x = 1,711,715,701,672.58/1,422,980.54
  6. Step 6: Final answer
    x = 1,202,908.72

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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.