Home / 908,738.70-1,363,108.05-820,165.20

Finding the Fourth Proportional to 908,738.70, 1,363,108.05 and 820,165.20

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Solution

The fourth proportional to 908,738.70, 1,363,108.05 and 820,165.20 is: 1,230,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,738.70 : 1,363,108.05 = 820,165.20 : x
  2. Step 2: Convert to fraction form
    908,738.70/1,363,108.05 = 820,165.20/x
  3. Step 3: Cross multiply
    908,738.70x = 1,363,108.05 × 820,165.20
  4. Step 4: Simplify right side
    908,738.70x = 1,117,973,786,449.86
  5. Step 5: Solve for x
    x = 1,117,973,786,449.86/908,738.70
  6. Step 6: Final answer
    x = 1,230,247.80

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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.