Home / 1,388,436-2,081,856.96-546,528.48

Finding the Fourth Proportional to 1,388,436, 2,081,856.96 and 546,528.48

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Solution

The fourth proportional to 1,388,436, 2,081,856.96 and 546,528.48 is: 819,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,436 : 2,081,856.96 = 546,528.48 : x
  2. Step 2: Convert to fraction form
    1,388,436/2,081,856.96 = 546,528.48/x
  3. Step 3: Cross multiply
    1,388,436x = 2,081,856.96 × 546,528.48
  4. Step 4: Simplify right side
    1,388,436x = 1,137,794,119,926.22
  5. Step 5: Solve for x
    x = 1,137,794,119,926.22/1,388,436
  6. Step 6: Final answer
    x = 819,478.98

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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.