Home / 1,218,103.56-1,827,277.02-419,279.40

Finding the Fourth Proportional to 1,218,103.56, 1,827,277.02 and 419,279.40

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Solution

The fourth proportional to 1,218,103.56, 1,827,277.02 and 419,279.40 is: 628,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,103.56 : 1,827,277.02 = 419,279.40 : x
  2. Step 2: Convert to fraction form
    1,218,103.56/1,827,277.02 = 419,279.40/x
  3. Step 3: Cross multiply
    1,218,103.56x = 1,827,277.02 × 419,279.40
  4. Step 4: Simplify right side
    1,218,103.56x = 766,139,612,579.39
  5. Step 5: Solve for x
    x = 766,139,612,579.39/1,218,103.56
  6. Step 6: Final answer
    x = 628,960.98

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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.