Home / 1,412,291.28-2,117,242.80-612,972

Finding the Fourth Proportional to 1,412,291.28, 2,117,242.80 and 612,972

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Solution

The fourth proportional to 1,412,291.28, 2,117,242.80 and 612,972 is: 918,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,291.28 : 2,117,242.80 = 612,972 : x
  2. Step 2: Convert to fraction form
    1,412,291.28/2,117,242.80 = 612,972/x
  3. Step 3: Cross multiply
    1,412,291.28x = 2,117,242.80 × 612,972
  4. Step 4: Simplify right side
    1,412,291.28x = 1,297,810,553,601.60
  5. Step 5: Solve for x
    x = 1,297,810,553,601.60/1,412,291.28
  6. Step 6: Final answer
    x = 918,939.72

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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.