Home / 758,940.60-1,138,410.90-285,732.12

Finding the Fourth Proportional to 758,940.60, 1,138,410.90 and 285,732.12

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Solution

The fourth proportional to 758,940.60, 1,138,410.90 and 285,732.12 is: 428,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,940.60 : 1,138,410.90 = 285,732.12 : x
  2. Step 2: Convert to fraction form
    758,940.60/1,138,410.90 = 285,732.12/x
  3. Step 3: Cross multiply
    758,940.60x = 1,138,410.90 × 285,732.12
  4. Step 4: Simplify right side
    758,940.60x = 325,280,559,888.11
  5. Step 5: Solve for x
    x = 325,280,559,888.11/758,940.60
  6. Step 6: Final answer
    x = 428,598.18

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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.