Home / 930,904.20-1,396,356.30-836,425.80

Finding the Fourth Proportional to 930,904.20, 1,396,356.30 and 836,425.80

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Solution

The fourth proportional to 930,904.20, 1,396,356.30 and 836,425.80 is: 1,254,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,904.20 : 1,396,356.30 = 836,425.80 : x
  2. Step 2: Convert to fraction form
    930,904.20/1,396,356.30 = 836,425.80/x
  3. Step 3: Cross multiply
    930,904.20x = 1,396,356.30 × 836,425.80
  4. Step 4: Simplify right side
    930,904.20x = 1,167,948,435,312.54
  5. Step 5: Solve for x
    x = 1,167,948,435,312.54/930,904.20
  6. Step 6: Final answer
    x = 1,254,638.70

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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.