Home / 1,239,724.33-1,710,862.40-688,449.31

Finding the Fourth Proportional to 1,239,724.33, 1,710,862.40 and 688,449.31

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Solution

The fourth proportional to 1,239,724.33, 1,710,862.40 and 688,449.31 is: 950,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,724.33 : 1,710,862.40 = 688,449.31 : x
  2. Step 2: Convert to fraction form
    1,239,724.33/1,710,862.40 = 688,449.31/x
  3. Step 3: Cross multiply
    1,239,724.33x = 1,710,862.40 × 688,449.31
  4. Step 4: Simplify right side
    1,239,724.33x = 1,177,842,038,784.94
  5. Step 5: Solve for x
    x = 1,177,842,038,784.94/1,239,724.33
  6. Step 6: Final answer
    x = 950,083.83

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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.