Home / 1,006,708.79-1,389,258.36-553,999.79

Finding the Fourth Proportional to 1,006,708.79, 1,389,258.36 and 553,999.79

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Solution

The fourth proportional to 1,006,708.79, 1,389,258.36 and 553,999.79 is: 764,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,708.79 : 1,389,258.36 = 553,999.79 : x
  2. Step 2: Convert to fraction form
    1,006,708.79/1,389,258.36 = 553,999.79/x
  3. Step 3: Cross multiply
    1,006,708.79x = 1,389,258.36 × 553,999.79
  4. Step 4: Simplify right side
    1,006,708.79x = 769,648,839,695.75
  5. Step 5: Solve for x
    x = 769,648,839,695.75/1,006,708.79
  6. Step 6: Final answer
    x = 764,519.84

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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.