Home / 1,230,970.55-1,699,022.80-721,836.95

Finding the Fourth Proportional to 1,230,970.55, 1,699,022.80 and 721,836.95

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Solution

The fourth proportional to 1,230,970.55, 1,699,022.80 and 721,836.95 is: 996,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,970.55 : 1,699,022.80 = 721,836.95 : x
  2. Step 2: Convert to fraction form
    1,230,970.55/1,699,022.80 = 721,836.95/x
  3. Step 3: Cross multiply
    1,230,970.55x = 1,699,022.80 × 721,836.95
  4. Step 4: Simplify right side
    1,230,970.55x = 1,226,417,436,902.29
  5. Step 5: Solve for x
    x = 1,226,417,436,902.29/1,230,970.55
  6. Step 6: Final answer
    x = 996,301.20

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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.