Home / 1,120,904.80-1,681,357.20-447,090.10

Finding the Fourth Proportional to 1,120,904.80, 1,681,357.20 and 447,090.10

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Solution

The fourth proportional to 1,120,904.80, 1,681,357.20 and 447,090.10 is: 670,635.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,904.80 : 1,681,357.20 = 447,090.10 : x
  2. Step 2: Convert to fraction form
    1,120,904.80/1,681,357.20 = 447,090.10/x
  3. Step 3: Cross multiply
    1,120,904.80x = 1,681,357.20 × 447,090.10
  4. Step 4: Simplify right side
    1,120,904.80x = 751,718,158,683.72
  5. Step 5: Solve for x
    x = 751,718,158,683.72/1,120,904.80
  6. Step 6: Final answer
    x = 670,635.15

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Double scale
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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.