Home / 1,230,973.71-1,699,027.16-721,840.11

Finding the Fourth Proportional to 1,230,973.71, 1,699,027.16 and 721,840.11

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Solution

The fourth proportional to 1,230,973.71, 1,699,027.16 and 721,840.11 is: 996,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,973.71 : 1,699,027.16 = 721,840.11 : x
  2. Step 2: Convert to fraction form
    1,230,973.71/1,699,027.16 = 721,840.11/x
  3. Step 3: Cross multiply
    1,230,973.71x = 1,699,027.16 × 721,840.11
  4. Step 4: Simplify right side
    1,230,973.71x = 1,226,425,948,458.19
  5. Step 5: Solve for x
    x = 1,226,425,948,458.19/1,230,973.71
  6. Step 6: Final answer
    x = 996,305.56

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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.