Home / 738,284.80-1,107,427.20-422,773.60

Finding the Fourth Proportional to 738,284.80, 1,107,427.20 and 422,773.60

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Solution

The fourth proportional to 738,284.80, 1,107,427.20 and 422,773.60 is: 634,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,284.80 : 1,107,427.20 = 422,773.60 : x
  2. Step 2: Convert to fraction form
    738,284.80/1,107,427.20 = 422,773.60/x
  3. Step 3: Cross multiply
    738,284.80x = 1,107,427.20 × 422,773.60
  4. Step 4: Simplify right side
    738,284.80x = 468,190,984,081.92
  5. Step 5: Solve for x
    x = 468,190,984,081.92/738,284.80
  6. Step 6: Final answer
    x = 634,160.40

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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.