Home / 5,320,632.95-7,980,949.49-1,277,120.76

Finding the Fourth Proportional to 5,320,632.95, 7,980,949.49 and 1,277,120.76

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Solution

The fourth proportional to 5,320,632.95, 7,980,949.49 and 1,277,120.76 is: 1,915,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,632.95 : 7,980,949.49 = 1,277,120.76 : x
  2. Step 2: Convert to fraction form
    5,320,632.95/7,980,949.49 = 1,277,120.76/x
  3. Step 3: Cross multiply
    5,320,632.95x = 7,980,949.49 × 1,277,120.76
  4. Step 4: Simplify right side
    5,320,632.95x = 10,192,636,278,190.41
  5. Step 5: Solve for x
    x = 10,192,636,278,190.41/5,320,632.95
  6. Step 6: Final answer
    x = 1,915,681.16

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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.