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Finding the Fourth Proportional to 617,878.75, 852,685.65 and 349,606.75

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Solution

The fourth proportional to 617,878.75, 852,685.65 and 349,606.75 is: 482,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,878.75 : 852,685.65 = 349,606.75 : x
  2. Step 2: Convert to fraction form
    617,878.75/852,685.65 = 349,606.75/x
  3. Step 3: Cross multiply
    617,878.75x = 852,685.65 × 349,606.75
  4. Step 4: Simplify right side
    617,878.75x = 298,104,658,868.14
  5. Step 5: Solve for x
    x = 298,104,658,868.14/617,878.75
  6. Step 6: Final answer
    x = 482,464.66

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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.