Home / 1,390,605.20-2,085,907.80-548,723.60

Finding the Fourth Proportional to 1,390,605.20, 2,085,907.80 and 548,723.60

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Solution

The fourth proportional to 1,390,605.20, 2,085,907.80 and 548,723.60 is: 823,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,605.20 : 2,085,907.80 = 548,723.60 : x
  2. Step 2: Convert to fraction form
    1,390,605.20/2,085,907.80 = 548,723.60/x
  3. Step 3: Cross multiply
    1,390,605.20x = 2,085,907.80 × 548,723.60
  4. Step 4: Simplify right side
    1,390,605.20x = 1,144,586,837,284.08
  5. Step 5: Solve for x
    x = 1,144,586,837,284.08/1,390,605.20
  6. Step 6: Final answer
    x = 823,085.40

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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.