Home / 900,869.78-1,351,026.58-261,220.65

Finding the Fourth Proportional to 900,869.78, 1,351,026.58 and 261,220.65

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Solution

The fourth proportional to 900,869.78, 1,351,026.58 and 261,220.65 is: 391,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,869.78 : 1,351,026.58 = 261,220.65 : x
  2. Step 2: Convert to fraction form
    900,869.78/1,351,026.58 = 261,220.65/x
  3. Step 3: Cross multiply
    900,869.78x = 1,351,026.58 × 261,220.65
  4. Step 4: Simplify right side
    900,869.78x = 352,916,041,394.88
  5. Step 5: Solve for x
    x = 352,916,041,394.88/900,869.78
  6. Step 6: Final answer
    x = 391,750.34

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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.