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Finding the Fourth Proportional to 512,005.80, 768,008.70 and 325,151.40

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Solution

The fourth proportional to 512,005.80, 768,008.70 and 325,151.40 is: 487,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,005.80 : 768,008.70 = 325,151.40 : x
  2. Step 2: Convert to fraction form
    512,005.80/768,008.70 = 325,151.40/x
  3. Step 3: Cross multiply
    512,005.80x = 768,008.70 × 325,151.40
  4. Step 4: Simplify right side
    512,005.80x = 249,719,104,017.18
  5. Step 5: Solve for x
    x = 249,719,104,017.18/512,005.80
  6. Step 6: Final answer
    x = 487,727.10

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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.