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Finding the Fourth Proportional to 307,539.60, 461,309.40 and 304,429.20

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Solution

The fourth proportional to 307,539.60, 461,309.40 and 304,429.20 is: 456,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,539.60 : 461,309.40 = 304,429.20 : x
  2. Step 2: Convert to fraction form
    307,539.60/461,309.40 = 304,429.20/x
  3. Step 3: Cross multiply
    307,539.60x = 461,309.40 × 304,429.20
  4. Step 4: Simplify right side
    307,539.60x = 140,436,051,594.48
  5. Step 5: Solve for x
    x = 140,436,051,594.48/307,539.60
  6. Step 6: Final answer
    x = 456,643.80

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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.