Home / 1,389,711.90-2,085,259.05-548,291.10

Finding the Fourth Proportional to 1,389,711.90, 2,085,259.05 and 548,291.10

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Solution

The fourth proportional to 1,389,711.90, 2,085,259.05 and 548,291.10 is: 822,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,711.90 : 2,085,259.05 = 548,291.10 : x
  2. Step 2: Convert to fraction form
    1,389,711.90/2,085,259.05 = 548,291.10/x
  3. Step 3: Cross multiply
    1,389,711.90x = 2,085,259.05 × 548,291.10
  4. Step 4: Simplify right side
    1,389,711.90x = 1,143,328,978,309.46
  5. Step 5: Solve for x
    x = 1,143,328,978,309.46/1,389,711.90
  6. Step 6: Final answer
    x = 822,709.35

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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.