Home / 642,824.48-964,147.50-450,114.59

Finding the Fourth Proportional to 642,824.48, 964,147.50 and 450,114.59

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Solution

The fourth proportional to 642,824.48, 964,147.50 and 450,114.59 is: 675,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,824.48 : 964,147.50 = 450,114.59 : x
  2. Step 2: Convert to fraction form
    642,824.48/964,147.50 = 450,114.59/x
  3. Step 3: Cross multiply
    642,824.48x = 964,147.50 × 450,114.59
  4. Step 4: Simplify right side
    642,824.48x = 433,976,851,841.29
  5. Step 5: Solve for x
    x = 433,976,851,841.29/642,824.48
  6. Step 6: Final answer
    x = 675,109.41

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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.