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Finding the Fourth Proportional to 512,822.10, 769,925.70 and 299,808.30

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Solution

The fourth proportional to 512,822.10, 769,925.70 and 299,808.30 is: 450,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,822.10 : 769,925.70 = 299,808.30 : x
  2. Step 2: Convert to fraction form
    512,822.10/769,925.70 = 299,808.30/x
  3. Step 3: Cross multiply
    512,822.10x = 769,925.70 × 299,808.30
  4. Step 4: Simplify right side
    512,822.10x = 230,830,115,243.31
  5. Step 5: Solve for x
    x = 230,830,115,243.31/512,822.10
  6. Step 6: Final answer
    x = 450,117.33

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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.