Home / 1,989,265.60-2,983,898.40-727,998.40

Finding the Fourth Proportional to 1,989,265.60, 2,983,898.40 and 727,998.40

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Solution

The fourth proportional to 1,989,265.60, 2,983,898.40 and 727,998.40 is: 1,091,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,265.60 : 2,983,898.40 = 727,998.40 : x
  2. Step 2: Convert to fraction form
    1,989,265.60/2,983,898.40 = 727,998.40/x
  3. Step 3: Cross multiply
    1,989,265.60x = 2,983,898.40 × 727,998.40
  4. Step 4: Simplify right side
    1,989,265.60x = 2,172,273,260,962.56
  5. Step 5: Solve for x
    x = 2,172,273,260,962.56/1,989,265.60
  6. Step 6: Final answer
    x = 1,091,997.60

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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.