Home / 1,040,200.40-1,435,495.56-587,406.80

Finding the Fourth Proportional to 1,040,200.40, 1,435,495.56 and 587,406.80

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Solution

The fourth proportional to 1,040,200.40, 1,435,495.56 and 587,406.80 is: 810,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,200.40 : 1,435,495.56 = 587,406.80 : x
  2. Step 2: Convert to fraction form
    1,040,200.40/1,435,495.56 = 587,406.80/x
  3. Step 3: Cross multiply
    1,040,200.40x = 1,435,495.56 × 587,406.80
  4. Step 4: Simplify right side
    1,040,200.40x = 843,219,853,313.81
  5. Step 5: Solve for x
    x = 843,219,853,313.81/1,040,200.40
  6. Step 6: Final answer
    x = 810,632.12

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.