Home / 745,176.64-1,117,774.68-324,436.72

Finding the Fourth Proportional to 745,176.64, 1,117,774.68 and 324,436.72

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Solution

The fourth proportional to 745,176.64, 1,117,774.68 and 324,436.72 is: 486,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,176.64 : 1,117,774.68 = 324,436.72 : x
  2. Step 2: Convert to fraction form
    745,176.64/1,117,774.68 = 324,436.72/x
  3. Step 3: Cross multiply
    745,176.64x = 1,117,774.68 × 324,436.72
  4. Step 4: Simplify right side
    745,176.64x = 362,647,150,878.25
  5. Step 5: Solve for x
    x = 362,647,150,878.25/745,176.64
  6. Step 6: Final answer
    x = 486,659.31

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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.