Home / 870,283.31-1,306,379.61-691,517.93

Finding the Fourth Proportional to 870,283.31, 1,306,379.61 and 691,517.93

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Solution

The fourth proportional to 870,283.31, 1,306,379.61 and 691,517.93 is: 1,038,035.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,283.31 : 1,306,379.61 = 691,517.93 : x
  2. Step 2: Convert to fraction form
    870,283.31/1,306,379.61 = 691,517.93/x
  3. Step 3: Cross multiply
    870,283.31x = 1,306,379.61 × 691,517.93
  4. Step 4: Simplify right side
    870,283.31x = 903,384,917,169.51
  5. Step 5: Solve for x
    x = 903,384,917,169.51/870,283.31
  6. Step 6: Final answer
    x = 1,038,035.44

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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.