Home / 1,078,741.80-1,616,816.70-447,330.60

Finding the Fourth Proportional to 1,078,741.80, 1,616,816.70 and 447,330.60

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Solution

The fourth proportional to 1,078,741.80, 1,616,816.70 and 447,330.60 is: 670,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,741.80 : 1,616,816.70 = 447,330.60 : x
  2. Step 2: Convert to fraction form
    1,078,741.80/1,616,816.70 = 447,330.60/x
  3. Step 3: Cross multiply
    1,078,741.80x = 1,616,816.70 × 447,330.60
  4. Step 4: Simplify right side
    1,078,741.80x = 723,251,584,501.02
  5. Step 5: Solve for x
    x = 723,251,584,501.02/1,078,741.80
  6. Step 6: Final answer
    x = 670,458.48

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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.