Home / 792,678.66-1,189,141.98-260,078.58

Finding the Fourth Proportional to 792,678.66, 1,189,141.98 and 260,078.58

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Solution

The fourth proportional to 792,678.66, 1,189,141.98 and 260,078.58 is: 390,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,678.66 : 1,189,141.98 = 260,078.58 : x
  2. Step 2: Convert to fraction form
    792,678.66/1,189,141.98 = 260,078.58/x
  3. Step 3: Cross multiply
    792,678.66x = 1,189,141.98 × 260,078.58
  4. Step 4: Simplify right side
    792,678.66x = 309,270,357,576.79
  5. Step 5: Solve for x
    x = 309,270,357,576.79/792,678.66
  6. Step 6: Final answer
    x = 390,158.55

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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.