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Finding the Fourth Proportional to 514,986.90, 772,480.35 and 488,742.90

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Solution

The fourth proportional to 514,986.90, 772,480.35 and 488,742.90 is: 733,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,986.90 : 772,480.35 = 488,742.90 : x
  2. Step 2: Convert to fraction form
    514,986.90/772,480.35 = 488,742.90/x
  3. Step 3: Cross multiply
    514,986.90x = 772,480.35 × 488,742.90
  4. Step 4: Simplify right side
    514,986.90x = 377,544,286,452.02
  5. Step 5: Solve for x
    x = 377,544,286,452.02/514,986.90
  6. Step 6: Final answer
    x = 733,114.35

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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.