Home / 908,435.32-1,253,669.14-521,321.56

Finding the Fourth Proportional to 908,435.32, 1,253,669.14 and 521,321.56

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Solution

The fourth proportional to 908,435.32, 1,253,669.14 and 521,321.56 is: 719,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,435.32 : 1,253,669.14 = 521,321.56 : x
  2. Step 2: Convert to fraction form
    908,435.32/1,253,669.14 = 521,321.56/x
  3. Step 3: Cross multiply
    908,435.32x = 1,253,669.14 × 521,321.56
  4. Step 4: Simplify right side
    908,435.32x = 653,564,751,788.66
  5. Step 5: Solve for x
    x = 653,564,751,788.66/908,435.32
  6. Step 6: Final answer
    x = 719,440.05

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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.