Home / 1,616,720.58-2,231,043.35-891,635.31

Finding the Fourth Proportional to 1,616,720.58, 2,231,043.35 and 891,635.31

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Solution

The fourth proportional to 1,616,720.58, 2,231,043.35 and 891,635.31 is: 1,230,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,720.58 : 2,231,043.35 = 891,635.31 : x
  2. Step 2: Convert to fraction form
    1,616,720.58/2,231,043.35 = 891,635.31/x
  3. Step 3: Cross multiply
    1,616,720.58x = 2,231,043.35 × 891,635.31
  4. Step 4: Simplify right side
    1,616,720.58x = 1,989,277,024,542.51
  5. Step 5: Solve for x
    x = 1,989,277,024,542.51/1,616,720.58
  6. Step 6: Final answer
    x = 1,230,439.60

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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.