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Finding the Fourth Proportional to 512,400.60, 766,851.30 and 470,410.20

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Solution

The fourth proportional to 512,400.60, 766,851.30 and 470,410.20 is: 704,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,400.60 : 766,851.30 = 470,410.20 : x
  2. Step 2: Convert to fraction form
    512,400.60/766,851.30 = 470,410.20/x
  3. Step 3: Cross multiply
    512,400.60x = 766,851.30 × 470,410.20
  4. Step 4: Simplify right side
    512,400.60x = 360,734,673,403.26
  5. Step 5: Solve for x
    x = 360,734,673,403.26/512,400.60
  6. Step 6: Final answer
    x = 704,009.08

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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.