Home / 810,425.07-1,118,453.94-447,919.74

Finding the Fourth Proportional to 810,425.07, 1,118,453.94 and 447,919.74

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Solution

The fourth proportional to 810,425.07, 1,118,453.94 and 447,919.74 is: 618,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,425.07 : 1,118,453.94 = 447,919.74 : x
  2. Step 2: Convert to fraction form
    810,425.07/1,118,453.94 = 447,919.74/x
  3. Step 3: Cross multiply
    810,425.07x = 1,118,453.94 × 447,919.74
  4. Step 4: Simplify right side
    810,425.07x = 500,977,598,006.78
  5. Step 5: Solve for x
    x = 500,977,598,006.78/810,425.07
  6. Step 6: Final answer
    x = 618,166.46

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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.