Home / 830,267.80-1,245,401.70-231,321.40

Finding the Fourth Proportional to 830,267.80, 1,245,401.70 and 231,321.40

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Solution

The fourth proportional to 830,267.80, 1,245,401.70 and 231,321.40 is: 346,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,267.80 : 1,245,401.70 = 231,321.40 : x
  2. Step 2: Convert to fraction form
    830,267.80/1,245,401.70 = 231,321.40/x
  3. Step 3: Cross multiply
    830,267.80x = 1,245,401.70 × 231,321.40
  4. Step 4: Simplify right side
    830,267.80x = 288,088,064,806.38
  5. Step 5: Solve for x
    x = 288,088,064,806.38/830,267.80
  6. Step 6: Final answer
    x = 346,982.10

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Similar ratio
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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.