Home / 1,345,445.22-2,015,884.02-811,845.03

Finding the Fourth Proportional to 1,345,445.22, 2,015,884.02 and 811,845.03

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Solution

The fourth proportional to 1,345,445.22, 2,015,884.02 and 811,845.03 is: 1,216,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,445.22 : 2,015,884.02 = 811,845.03 : x
  2. Step 2: Convert to fraction form
    1,345,445.22/2,015,884.02 = 811,845.03/x
  3. Step 3: Cross multiply
    1,345,445.22x = 2,015,884.02 × 811,845.03
  4. Step 4: Simplify right side
    1,345,445.22x = 1,636,585,422,693.42
  5. Step 5: Solve for x
    x = 1,636,585,422,693.42/1,345,445.22
  6. Step 6: Final answer
    x = 1,216,389.49

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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.