Home / 777,572.89-1,166,184.36-278,936.89

Finding the Fourth Proportional to 777,572.89, 1,166,184.36 and 278,936.89

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Solution

The fourth proportional to 777,572.89, 1,166,184.36 and 278,936.89 is: 418,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,572.89 : 1,166,184.36 = 278,936.89 : x
  2. Step 2: Convert to fraction form
    777,572.89/1,166,184.36 = 278,936.89/x
  3. Step 3: Cross multiply
    777,572.89x = 1,166,184.36 × 278,936.89
  4. Step 4: Simplify right side
    777,572.89x = 325,291,838,545.04
  5. Step 5: Solve for x
    x = 325,291,838,545.04/777,572.89
  6. Step 6: Final answer
    x = 418,342.57

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1.5x scale

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.