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Finding the Fourth Proportional to 524,963.60, 787,445.40 and 325,509.20

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Solution

The fourth proportional to 524,963.60, 787,445.40 and 325,509.20 is: 488,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,963.60 : 787,445.40 = 325,509.20 : x
  2. Step 2: Convert to fraction form
    524,963.60/787,445.40 = 325,509.20/x
  3. Step 3: Cross multiply
    524,963.60x = 787,445.40 × 325,509.20
  4. Step 4: Simplify right side
    524,963.60x = 256,320,722,197.68
  5. Step 5: Solve for x
    x = 256,320,722,197.68/524,963.60
  6. Step 6: Final answer
    x = 488,263.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.