Home / 407,837.40-611,756.10-108,364.20

Finding the Fourth Proportional to 407,837.40, 611,756.10 and 108,364.20

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Solution

The fourth proportional to 407,837.40, 611,756.10 and 108,364.20 is: 162,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,837.40 : 611,756.10 = 108,364.20 : x
  2. Step 2: Convert to fraction form
    407,837.40/611,756.10 = 108,364.20/x
  3. Step 3: Cross multiply
    407,837.40x = 611,756.10 × 108,364.20
  4. Step 4: Simplify right side
    407,837.40x = 66,292,460,371.62
  5. Step 5: Solve for x
    x = 66,292,460,371.62/407,837.40
  6. Step 6: Final answer
    x = 162,546.30

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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.