Home / 1,208,685.06-1,667,869.65-664,812.18

Finding the Fourth Proportional to 1,208,685.06, 1,667,869.65 and 664,812.18

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Solution

The fourth proportional to 1,208,685.06, 1,667,869.65 and 664,812.18 is: 917,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,685.06 : 1,667,869.65 = 664,812.18 : x
  2. Step 2: Convert to fraction form
    1,208,685.06/1,667,869.65 = 664,812.18/x
  3. Step 3: Cross multiply
    1,208,685.06x = 1,667,869.65 × 664,812.18
  4. Step 4: Simplify right side
    1,208,685.06x = 1,108,820,057,972.34
  5. Step 5: Solve for x
    x = 1,108,820,057,972.34/1,208,685.06
  6. Step 6: Final answer
    x = 917,377.15

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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.