Home / 917,734.90-1,376,629.49-438,013.25

Finding the Fourth Proportional to 917,734.90, 1,376,629.49 and 438,013.25

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Solution

The fourth proportional to 917,734.90, 1,376,629.49 and 438,013.25 is: 657,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,734.90 : 1,376,629.49 = 438,013.25 : x
  2. Step 2: Convert to fraction form
    917,734.90/1,376,629.49 = 438,013.25/x
  3. Step 3: Cross multiply
    917,734.90x = 1,376,629.49 × 438,013.25
  4. Step 4: Simplify right side
    917,734.90x = 602,981,956,960.74
  5. Step 5: Solve for x
    x = 602,981,956,960.74/917,734.90
  6. Step 6: Final answer
    x = 657,032.83

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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.