Home / 758,940.79-1,138,411.18-285,732.31

Finding the Fourth Proportional to 758,940.79, 1,138,411.18 and 285,732.31

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Solution

The fourth proportional to 758,940.79, 1,138,411.18 and 285,732.31 is: 428,598.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,940.79 : 1,138,411.18 = 285,732.31 : x
  2. Step 2: Convert to fraction form
    758,940.79/1,138,411.18 = 285,732.31/x
  3. Step 3: Cross multiply
    758,940.79x = 1,138,411.18 × 285,732.31
  4. Step 4: Simplify right side
    758,940.79x = 325,280,856,191.23
  5. Step 5: Solve for x
    x = 325,280,856,191.23/758,940.79
  6. Step 6: Final answer
    x = 428,598.46

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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.