Home / 668,289.28-1,002,417.24-194,978.80

Finding the Fourth Proportional to 668,289.28, 1,002,417.24 and 194,978.80

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Solution

The fourth proportional to 668,289.28, 1,002,417.24 and 194,978.80 is: 292,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,289.28 : 1,002,417.24 = 194,978.80 : x
  2. Step 2: Convert to fraction form
    668,289.28/1,002,417.24 = 194,978.80/x
  3. Step 3: Cross multiply
    668,289.28x = 1,002,417.24 × 194,978.80
  4. Step 4: Simplify right side
    668,289.28x = 195,450,110,554.51
  5. Step 5: Solve for x
    x = 195,450,110,554.51/668,289.28
  6. Step 6: Final answer
    x = 292,463.33

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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.