Home / 1,078,892.40-1,618,338.60-330,841.20

Finding the Fourth Proportional to 1,078,892.40, 1,618,338.60 and 330,841.20

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Solution

The fourth proportional to 1,078,892.40, 1,618,338.60 and 330,841.20 is: 496,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,892.40 : 1,618,338.60 = 330,841.20 : x
  2. Step 2: Convert to fraction form
    1,078,892.40/1,618,338.60 = 330,841.20/x
  3. Step 3: Cross multiply
    1,078,892.40x = 1,618,338.60 × 330,841.20
  4. Step 4: Simplify right side
    1,078,892.40x = 535,413,084,430.32
  5. Step 5: Solve for x
    x = 535,413,084,430.32/1,078,892.40
  6. Step 6: Final answer
    x = 496,261.80

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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.