Home / 1,500,213.60-2,070,277.92-821,142

Finding the Fourth Proportional to 1,500,213.60, 2,070,277.92 and 821,142

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Solution

The fourth proportional to 1,500,213.60, 2,070,277.92 and 821,142 is: 1,133,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,213.60 : 2,070,277.92 = 821,142 : x
  2. Step 2: Convert to fraction form
    1,500,213.60/2,070,277.92 = 821,142/x
  3. Step 3: Cross multiply
    1,500,213.60x = 2,070,277.92 × 821,142
  4. Step 4: Simplify right side
    1,500,213.60x = 1,699,992,151,784.64
  5. Step 5: Solve for x
    x = 1,699,992,151,784.64/1,500,213.60
  6. Step 6: Final answer
    x = 1,133,166.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.