Home / 777,877.07-1,166,545.75-272,426.90

Finding the Fourth Proportional to 777,877.07, 1,166,545.75 and 272,426.90

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Solution

The fourth proportional to 777,877.07, 1,166,545.75 and 272,426.90 is: 408,545.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,877.07 : 1,166,545.75 = 272,426.90 : x
  2. Step 2: Convert to fraction form
    777,877.07/1,166,545.75 = 272,426.90/x
  3. Step 3: Cross multiply
    777,877.07x = 1,166,545.75 × 272,426.90
  4. Step 4: Simplify right side
    777,877.07x = 317,798,442,380.68
  5. Step 5: Solve for x
    x = 317,798,442,380.68/777,877.07
  6. Step 6: Final answer
    x = 408,545.84

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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.