Home / 780,107.55-1,169,383.73-358,648.35

Finding the Fourth Proportional to 780,107.55, 1,169,383.73 and 358,648.35

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Solution

The fourth proportional to 780,107.55, 1,169,383.73 and 358,648.35 is: 537,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,107.55 : 1,169,383.73 = 358,648.35 : x
  2. Step 2: Convert to fraction form
    780,107.55/1,169,383.73 = 358,648.35/x
  3. Step 3: Cross multiply
    780,107.55x = 1,169,383.73 × 358,648.35
  4. Step 4: Simplify right side
    780,107.55x = 419,397,543,488.10
  5. Step 5: Solve for x
    x = 419,397,543,488.10/780,107.55
  6. Step 6: Final answer
    x = 537,615.03

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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.