Home / 833,369.12-1,149,967.20-465,778.40

Finding the Fourth Proportional to 833,369.12, 1,149,967.20 and 465,778.40

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Solution

The fourth proportional to 833,369.12, 1,149,967.20 and 465,778.40 is: 642,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,369.12 : 1,149,967.20 = 465,778.40 : x
  2. Step 2: Convert to fraction form
    833,369.12/1,149,967.20 = 465,778.40/x
  3. Step 3: Cross multiply
    833,369.12x = 1,149,967.20 × 465,778.40
  4. Step 4: Simplify right side
    833,369.12x = 535,629,882,468.48
  5. Step 5: Solve for x
    x = 535,629,882,468.48/833,369.12
  6. Step 6: Final answer
    x = 642,728.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.