Home / 1,390,390.80-2,085,067.80-548,768.40

Finding the Fourth Proportional to 1,390,390.80, 2,085,067.80 and 548,768.40

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Solution

The fourth proportional to 1,390,390.80, 2,085,067.80 and 548,768.40 is: 822,947.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,390.80 : 2,085,067.80 = 548,768.40 : x
  2. Step 2: Convert to fraction form
    1,390,390.80/2,085,067.80 = 548,768.40/x
  3. Step 3: Cross multiply
    1,390,390.80x = 2,085,067.80 × 548,768.40
  4. Step 4: Simplify right side
    1,390,390.80x = 1,144,219,320,497.52
  5. Step 5: Solve for x
    x = 1,144,219,320,497.52/1,390,390.80
  6. Step 6: Final answer
    x = 822,947.99

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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.