Home / 509,374.48-764,214.36-205,612.24

Finding the Fourth Proportional to 509,374.48, 764,214.36 and 205,612.24

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Solution

The fourth proportional to 509,374.48, 764,214.36 and 205,612.24 is: 308,479.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,374.48 : 764,214.36 = 205,612.24 : x
  2. Step 2: Convert to fraction form
    509,374.48/764,214.36 = 205,612.24/x
  3. Step 3: Cross multiply
    509,374.48x = 764,214.36 × 205,612.24
  4. Step 4: Simplify right side
    509,374.48x = 157,131,826,399.77
  5. Step 5: Solve for x
    x = 157,131,826,399.77/509,374.48
  6. Step 6: Final answer
    x = 308,479.97

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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.