Home / 509,483.71-764,569.23-209,957.65

Finding the Fourth Proportional to 509,483.71, 764,569.23 and 209,957.65

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Solution

The fourth proportional to 509,483.71, 764,569.23 and 209,957.65 is: 315,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,483.71 : 764,569.23 = 209,957.65 : x
  2. Step 2: Convert to fraction form
    509,483.71/764,569.23 = 209,957.65/x
  3. Step 3: Cross multiply
    509,483.71x = 764,569.23 × 209,957.65
  4. Step 4: Simplify right side
    509,483.71x = 160,527,158,793.11
  5. Step 5: Solve for x
    x = 160,527,158,793.11/509,483.71
  6. Step 6: Final answer
    x = 315,078.10

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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.