Home / 830,389.80-1,245,393.54-324,962.76

Finding the Fourth Proportional to 830,389.80, 1,245,393.54 and 324,962.76

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Solution

The fourth proportional to 830,389.80, 1,245,393.54 and 324,962.76 is: 487,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,389.80 : 1,245,393.54 = 324,962.76 : x
  2. Step 2: Convert to fraction form
    830,389.80/1,245,393.54 = 324,962.76/x
  3. Step 3: Cross multiply
    830,389.80x = 1,245,393.54 × 324,962.76
  4. Step 4: Simplify right side
    830,389.80x = 404,706,522,044.57
  5. Step 5: Solve for x
    x = 404,706,522,044.57/830,389.80
  6. Step 6: Final answer
    x = 487,369.33

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1.5x scale

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.