Home / 693,480.20-1,040,220.30-493,377.80

Finding the Fourth Proportional to 693,480.20, 1,040,220.30 and 493,377.80

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Solution

The fourth proportional to 693,480.20, 1,040,220.30 and 493,377.80 is: 740,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,480.20 : 1,040,220.30 = 493,377.80 : x
  2. Step 2: Convert to fraction form
    693,480.20/1,040,220.30 = 493,377.80/x
  3. Step 3: Cross multiply
    693,480.20x = 1,040,220.30 × 493,377.80
  4. Step 4: Simplify right side
    693,480.20x = 513,221,603,129.34
  5. Step 5: Solve for x
    x = 513,221,603,129.34/693,480.20
  6. Step 6: Final answer
    x = 740,066.70

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Double scale
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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.