Home / 779,792.94-1,170,138.69-330,478.38

Finding the Fourth Proportional to 779,792.94, 1,170,138.69 and 330,478.38

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Solution

The fourth proportional to 779,792.94, 1,170,138.69 and 330,478.38 is: 495,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,792.94 : 1,170,138.69 = 330,478.38 : x
  2. Step 2: Convert to fraction form
    779,792.94/1,170,138.69 = 330,478.38/x
  3. Step 3: Cross multiply
    779,792.94x = 1,170,138.69 × 330,478.38
  4. Step 4: Simplify right side
    779,792.94x = 386,705,538,646.52
  5. Step 5: Solve for x
    x = 386,705,538,646.52/779,792.94
  6. Step 6: Final answer
    x = 495,907.98

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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.