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Finding the Fourth Proportional to 1,865,223.60, 2,797,835.40 and 744,097.20

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Solution

The fourth proportional to 1,865,223.60, 2,797,835.40 and 744,097.20 is: 1,116,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,223.60 : 2,797,835.40 = 744,097.20 : x
  2. Step 2: Convert to fraction form
    1,865,223.60/2,797,835.40 = 744,097.20/x
  3. Step 3: Cross multiply
    1,865,223.60x = 2,797,835.40 × 744,097.20
  4. Step 4: Simplify right side
    1,865,223.60x = 2,081,861,487,200.88
  5. Step 5: Solve for x
    x = 2,081,861,487,200.88/1,865,223.60
  6. Step 6: Final answer
    x = 1,116,145.80

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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.