Home / 547,627.40-821,441.10-298,795.40

Finding the Fourth Proportional to 547,627.40, 821,441.10 and 298,795.40

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Solution

The fourth proportional to 547,627.40, 821,441.10 and 298,795.40 is: 448,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,627.40 : 821,441.10 = 298,795.40 : x
  2. Step 2: Convert to fraction form
    547,627.40/821,441.10 = 298,795.40/x
  3. Step 3: Cross multiply
    547,627.40x = 821,441.10 × 298,795.40
  4. Step 4: Simplify right side
    547,627.40x = 245,442,822,050.94
  5. Step 5: Solve for x
    x = 245,442,822,050.94/547,627.40
  6. Step 6: Final answer
    x = 448,193.10

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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.