Home / 2,139,068.40-3,209,007.21-859,775.46

Finding the Fourth Proportional to 2,139,068.40, 3,209,007.21 and 859,775.46

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Solution

The fourth proportional to 2,139,068.40, 3,209,007.21 and 859,775.46 is: 1,289,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,068.40 : 3,209,007.21 = 859,775.46 : x
  2. Step 2: Convert to fraction form
    2,139,068.40/3,209,007.21 = 859,775.46/x
  3. Step 3: Cross multiply
    2,139,068.40x = 3,209,007.21 × 859,775.46
  4. Step 4: Simplify right side
    2,139,068.40x = 2,759,025,650,121.07
  5. Step 5: Solve for x
    x = 2,759,025,650,121.07/2,139,068.40
  6. Step 6: Final answer
    x = 1,289,825.82

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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.