Home / 1,439,630.60-2,154,917.58-987,708.92

Finding the Fourth Proportional to 1,439,630.60, 2,154,917.58 and 987,708.92

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Solution

The fourth proportional to 1,439,630.60, 2,154,917.58 and 987,708.92 is: 1,478,456.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,630.60 : 2,154,917.58 = 987,708.92 : x
  2. Step 2: Convert to fraction form
    1,439,630.60/2,154,917.58 = 987,708.92/x
  3. Step 3: Cross multiply
    1,439,630.60x = 2,154,917.58 × 987,708.92
  4. Step 4: Simplify right side
    1,439,630.60x = 2,128,431,315,630.81
  5. Step 5: Solve for x
    x = 2,128,431,315,630.81/1,439,630.60
  6. Step 6: Final answer
    x = 1,478,456.57

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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.