Home / 1,230,956.60-1,699,003.55-721,823.00

Finding the Fourth Proportional to 1,230,956.60, 1,699,003.55 and 721,823.00

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Solution

The fourth proportional to 1,230,956.60, 1,699,003.55 and 721,823.00 is: 996,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,956.60 : 1,699,003.55 = 721,823.00 : x
  2. Step 2: Convert to fraction form
    1,230,956.60/1,699,003.55 = 721,823.00/x
  3. Step 3: Cross multiply
    1,230,956.60x = 1,699,003.55 × 721,823.00
  4. Step 4: Simplify right side
    1,230,956.60x = 1,226,379,838,277.83
  5. Step 5: Solve for x
    x = 1,226,379,838,277.83/1,230,956.60
  6. Step 6: Final answer
    x = 996,281.95

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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.