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Finding the Fourth Proportional to 617,959.60, 852,864.72 and 346,131.36

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Solution

The fourth proportional to 617,959.60, 852,864.72 and 346,131.36 is: 477,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,959.60 : 852,864.72 = 346,131.36 : x
  2. Step 2: Convert to fraction form
    617,959.60/852,864.72 = 346,131.36/x
  3. Step 3: Cross multiply
    617,959.60x = 852,864.72 × 346,131.36
  4. Step 4: Simplify right side
    617,959.60x = 295,203,225,429.62
  5. Step 5: Solve for x
    x = 295,203,225,429.62/617,959.60
  6. Step 6: Final answer
    x = 477,706.35

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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.