Home / 1,272,956.70-1,909,435.05-1,223,967.90

Finding the Fourth Proportional to 1,272,956.70, 1,909,435.05 and 1,223,967.90

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Solution

The fourth proportional to 1,272,956.70, 1,909,435.05 and 1,223,967.90 is: 1,835,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,956.70 : 1,909,435.05 = 1,223,967.90 : x
  2. Step 2: Convert to fraction form
    1,272,956.70/1,909,435.05 = 1,223,967.90/x
  3. Step 3: Cross multiply
    1,272,956.70x = 1,909,435.05 × 1,223,967.90
  4. Step 4: Simplify right side
    1,272,956.70x = 2,337,087,208,334.90
  5. Step 5: Solve for x
    x = 2,337,087,208,334.90/1,272,956.70
  6. Step 6: Final answer
    x = 1,835,951.85

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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.