Home / 887,007.40-1,330,511.10-354,910.30

Finding the Fourth Proportional to 887,007.40, 1,330,511.10 and 354,910.30

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Solution

The fourth proportional to 887,007.40, 1,330,511.10 and 354,910.30 is: 532,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,007.40 : 1,330,511.10 = 354,910.30 : x
  2. Step 2: Convert to fraction form
    887,007.40/1,330,511.10 = 354,910.30/x
  3. Step 3: Cross multiply
    887,007.40x = 1,330,511.10 × 354,910.30
  4. Step 4: Simplify right side
    887,007.40x = 472,212,093,654.33
  5. Step 5: Solve for x
    x = 472,212,093,654.33/887,007.40
  6. Step 6: Final answer
    x = 532,365.45

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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.