Home / 897,163.20-1,345,982.40-391,507.20

Finding the Fourth Proportional to 897,163.20, 1,345,982.40 and 391,507.20

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Solution

The fourth proportional to 897,163.20, 1,345,982.40 and 391,507.20 is: 587,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,163.20 : 1,345,982.40 = 391,507.20 : x
  2. Step 2: Convert to fraction form
    897,163.20/1,345,982.40 = 391,507.20/x
  3. Step 3: Cross multiply
    897,163.20x = 1,345,982.40 × 391,507.20
  4. Step 4: Simplify right side
    897,163.20x = 526,961,800,673.28
  5. Step 5: Solve for x
    x = 526,961,800,673.28/897,163.20
  6. Step 6: Final answer
    x = 587,364.48

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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.