Home / 3,556,806.12-5,336,208.18-1,428,384.78

Finding the Fourth Proportional to 3,556,806.12, 5,336,208.18 and 1,428,384.78

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Solution

The fourth proportional to 3,556,806.12, 5,336,208.18 and 1,428,384.78 is: 2,142,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556,806.12 : 5,336,208.18 = 1,428,384.78 : x
  2. Step 2: Convert to fraction form
    3,556,806.12/5,336,208.18 = 1,428,384.78/x
  3. Step 3: Cross multiply
    3,556,806.12x = 5,336,208.18 × 1,428,384.78
  4. Step 4: Simplify right side
    3,556,806.12x = 7,622,158,547,223.50
  5. Step 5: Solve for x
    x = 7,622,158,547,223.50/3,556,806.12
  6. Step 6: Final answer
    x = 2,142,978.36

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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.