Home / 908,752.20-1,363,128.30-820,178.70

Finding the Fourth Proportional to 908,752.20, 1,363,128.30 and 820,178.70

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Solution

The fourth proportional to 908,752.20, 1,363,128.30 and 820,178.70 is: 1,230,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,752.20 : 1,363,128.30 = 820,178.70 : x
  2. Step 2: Convert to fraction form
    908,752.20/1,363,128.30 = 820,178.70/x
  3. Step 3: Cross multiply
    908,752.20x = 1,363,128.30 × 820,178.70
  4. Step 4: Simplify right side
    908,752.20x = 1,118,008,797,027.21
  5. Step 5: Solve for x
    x = 1,118,008,797,027.21/908,752.20
  6. Step 6: Final answer
    x = 1,230,268.05

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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.