Home / 914,405.05-1,261,899.29-521,930.08

Finding the Fourth Proportional to 914,405.05, 1,261,899.29 and 521,930.08

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Solution

The fourth proportional to 914,405.05, 1,261,899.29 and 521,930.08 is: 720,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,405.05 : 1,261,899.29 = 521,930.08 : x
  2. Step 2: Convert to fraction form
    914,405.05/1,261,899.29 = 521,930.08/x
  3. Step 3: Cross multiply
    914,405.05x = 1,261,899.29 × 521,930.08
  4. Step 4: Simplify right side
    914,405.05x = 658,623,188,462.50
  5. Step 5: Solve for x
    x = 658,623,188,462.50/914,405.05
  6. Step 6: Final answer
    x = 720,275.10

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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.