Home / 900,869.53-1,351,026.21-261,220.40

Finding the Fourth Proportional to 900,869.53, 1,351,026.21 and 261,220.40

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Solution

The fourth proportional to 900,869.53, 1,351,026.21 and 261,220.40 is: 391,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,869.53 : 1,351,026.21 = 261,220.40 : x
  2. Step 2: Convert to fraction form
    900,869.53/1,351,026.21 = 261,220.40/x
  3. Step 3: Cross multiply
    900,869.53x = 1,351,026.21 × 261,220.40
  4. Step 4: Simplify right side
    900,869.53x = 352,915,610,364.25
  5. Step 5: Solve for x
    x = 352,915,610,364.25/900,869.53
  6. Step 6: Final answer
    x = 391,749.97

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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.