Home / 1,272,704.20-1,909,056.30-1,223,715.40

Finding the Fourth Proportional to 1,272,704.20, 1,909,056.30 and 1,223,715.40

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Solution

The fourth proportional to 1,272,704.20, 1,909,056.30 and 1,223,715.40 is: 1,835,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,704.20 : 1,909,056.30 = 1,223,715.40 : x
  2. Step 2: Convert to fraction form
    1,272,704.20/1,909,056.30 = 1,223,715.40/x
  3. Step 3: Cross multiply
    1,272,704.20x = 1,909,056.30 × 1,223,715.40
  4. Step 4: Simplify right side
    1,272,704.20x = 2,336,141,593,777.02
  5. Step 5: Solve for x
    x = 2,336,141,593,777.02/1,272,704.20
  6. Step 6: Final answer
    x = 1,835,573.10

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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.