Home / 846,279.20-1,268,609.70-313,657.40

Finding the Fourth Proportional to 846,279.20, 1,268,609.70 and 313,657.40

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Solution

The fourth proportional to 846,279.20, 1,268,609.70 and 313,657.40 is: 470,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,279.20 : 1,268,609.70 = 313,657.40 : x
  2. Step 2: Convert to fraction form
    846,279.20/1,268,609.70 = 313,657.40/x
  3. Step 3: Cross multiply
    846,279.20x = 1,268,609.70 × 313,657.40
  4. Step 4: Simplify right side
    846,279.20x = 397,908,820,116.78
  5. Step 5: Solve for x
    x = 397,908,820,116.78/846,279.20
  6. Step 6: Final answer
    x = 470,186.22

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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.