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Finding the Fourth Proportional to 618,147.57, 852,849.95 and 346,178.73

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Solution

The fourth proportional to 618,147.57, 852,849.95 and 346,178.73 is: 477,618.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,147.57 : 852,849.95 = 346,178.73 : x
  2. Step 2: Convert to fraction form
    618,147.57/852,849.95 = 346,178.73/x
  3. Step 3: Cross multiply
    618,147.57x = 852,849.95 × 346,178.73
  4. Step 4: Simplify right side
    618,147.57x = 295,238,509,172.76
  5. Step 5: Solve for x
    x = 295,238,509,172.76/618,147.57
  6. Step 6: Final answer
    x = 477,618.17

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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.