Home / 1,007,921.75-1,390,932.03-555,212.75

Finding the Fourth Proportional to 1,007,921.75, 1,390,932.03 and 555,212.75

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Solution

The fourth proportional to 1,007,921.75, 1,390,932.03 and 555,212.75 is: 766,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,921.75 : 1,390,932.03 = 555,212.75 : x
  2. Step 2: Convert to fraction form
    1,007,921.75/1,390,932.03 = 555,212.75/x
  3. Step 3: Cross multiply
    1,007,921.75x = 1,390,932.03 × 555,212.75
  4. Step 4: Simplify right side
    1,007,921.75x = 772,263,197,439.38
  5. Step 5: Solve for x
    x = 772,263,197,439.38/1,007,921.75
  6. Step 6: Final answer
    x = 766,193.60

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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.