Home / 1,389,740.40-2,085,301.80-548,319.60

Finding the Fourth Proportional to 1,389,740.40, 2,085,301.80 and 548,319.60

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Solution

The fourth proportional to 1,389,740.40, 2,085,301.80 and 548,319.60 is: 822,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,740.40 : 2,085,301.80 = 548,319.60 : x
  2. Step 2: Convert to fraction form
    1,389,740.40/2,085,301.80 = 548,319.60/x
  3. Step 3: Cross multiply
    1,389,740.40x = 2,085,301.80 × 548,319.60
  4. Step 4: Simplify right side
    1,389,740.40x = 1,143,411,848,855.28
  5. Step 5: Solve for x
    x = 1,143,411,848,855.28/1,389,740.40
  6. Step 6: Final answer
    x = 822,752.11

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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.