Home / 930,904.20-1,396,356.30-830,520.90

Finding the Fourth Proportional to 930,904.20, 1,396,356.30 and 830,520.90

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Solution

The fourth proportional to 930,904.20, 1,396,356.30 and 830,520.90 is: 1,245,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,904.20 : 1,396,356.30 = 830,520.90 : x
  2. Step 2: Convert to fraction form
    930,904.20/1,396,356.30 = 830,520.90/x
  3. Step 3: Cross multiply
    930,904.20x = 1,396,356.30 × 830,520.90
  4. Step 4: Simplify right side
    930,904.20x = 1,159,703,090,996.67
  5. Step 5: Solve for x
    x = 1,159,703,090,996.67/930,904.20
  6. Step 6: Final answer
    x = 1,245,781.35

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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.