Home / 718,969.20-1,078,453.80-344,799.60

Finding the Fourth Proportional to 718,969.20, 1,078,453.80 and 344,799.60

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Solution

The fourth proportional to 718,969.20, 1,078,453.80 and 344,799.60 is: 517,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,969.20 : 1,078,453.80 = 344,799.60 : x
  2. Step 2: Convert to fraction form
    718,969.20/1,078,453.80 = 344,799.60/x
  3. Step 3: Cross multiply
    718,969.20x = 1,078,453.80 × 344,799.60
  4. Step 4: Simplify right side
    718,969.20x = 371,850,438,858.48
  5. Step 5: Solve for x
    x = 371,850,438,858.48/718,969.20
  6. Step 6: Final answer
    x = 517,199.40

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Half scale
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Double scale
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Similar ratio
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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.