Home / 1,690,323.80-2,332,655.70-915,954.94

Finding the Fourth Proportional to 1,690,323.80, 2,332,655.70 and 915,954.94

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Solution

The fourth proportional to 1,690,323.80, 2,332,655.70 and 915,954.94 is: 1,264,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,323.80 : 2,332,655.70 = 915,954.94 : x
  2. Step 2: Convert to fraction form
    1,690,323.80/2,332,655.70 = 915,954.94/x
  3. Step 3: Cross multiply
    1,690,323.80x = 2,332,655.70 × 915,954.94
  4. Step 4: Simplify right side
    1,690,323.80x = 2,136,607,511,734.16
  5. Step 5: Solve for x
    x = 2,136,607,511,734.16/1,690,323.80
  6. Step 6: Final answer
    x = 1,264,022.62

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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.