Home / 610,947.51-917,091.68-485,394.81

Finding the Fourth Proportional to 610,947.51, 917,091.68 and 485,394.81

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Solution

The fourth proportional to 610,947.51, 917,091.68 and 485,394.81 is: 728,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,947.51 : 917,091.68 = 485,394.81 : x
  2. Step 2: Convert to fraction form
    610,947.51/917,091.68 = 485,394.81/x
  3. Step 3: Cross multiply
    610,947.51x = 917,091.68 × 485,394.81
  4. Step 4: Simplify right side
    610,947.51x = 445,151,539,339.21
  5. Step 5: Solve for x
    x = 445,151,539,339.21/610,947.51
  6. Step 6: Final answer
    x = 728,624.85

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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.