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Finding the Fourth Proportional to 460,820.40, 647,014.80 and 460,820.40

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Solution

The fourth proportional to 460,820.40, 647,014.80 and 460,820.40 is: 647,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,820.40 : 647,014.80 = 460,820.40 : x
  2. Step 2: Convert to fraction form
    460,820.40/647,014.80 = 460,820.40/x
  3. Step 3: Cross multiply
    460,820.40x = 647,014.80 × 460,820.40
  4. Step 4: Simplify right side
    460,820.40x = 298,157,618,941.92
  5. Step 5: Solve for x
    x = 298,157,618,941.92/460,820.40
  6. Step 6: Final answer
    x = 647,014.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.