Home / 814,000.40-1,221,000.60-693,731.60

Finding the Fourth Proportional to 814,000.40, 1,221,000.60 and 693,731.60

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Solution

The fourth proportional to 814,000.40, 1,221,000.60 and 693,731.60 is: 1,040,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,000.40 : 1,221,000.60 = 693,731.60 : x
  2. Step 2: Convert to fraction form
    814,000.40/1,221,000.60 = 693,731.60/x
  3. Step 3: Cross multiply
    814,000.40x = 1,221,000.60 × 693,731.60
  4. Step 4: Simplify right side
    814,000.40x = 847,046,699,838.96
  5. Step 5: Solve for x
    x = 847,046,699,838.96/814,000.40
  6. Step 6: Final answer
    x = 1,040,597.40

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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.