Home / 669,124.12-923,329.92-397,145.56

Finding the Fourth Proportional to 669,124.12, 923,329.92 and 397,145.56

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Solution

The fourth proportional to 669,124.12, 923,329.92 and 397,145.56 is: 548,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,124.12 : 923,329.92 = 397,145.56 : x
  2. Step 2: Convert to fraction form
    669,124.12/923,329.92 = 397,145.56/x
  3. Step 3: Cross multiply
    669,124.12x = 923,329.92 × 397,145.56
  4. Step 4: Simplify right side
    669,124.12x = 366,696,378,143.16
  5. Step 5: Solve for x
    x = 366,696,378,143.16/669,124.12
  6. Step 6: Final answer
    x = 548,024.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.