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Finding the Fourth Proportional to 617,998.46, 852,837.76 and 342,374.24

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Solution

The fourth proportional to 617,998.46, 852,837.76 and 342,374.24 is: 472,476.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,998.46 : 852,837.76 = 342,374.24 : x
  2. Step 2: Convert to fraction form
    617,998.46/852,837.76 = 342,374.24/x
  3. Step 3: Cross multiply
    617,998.46x = 852,837.76 × 342,374.24
  4. Step 4: Simplify right side
    617,998.46x = 291,989,682,483.37
  5. Step 5: Solve for x
    x = 291,989,682,483.37/617,998.46
  6. Step 6: Final answer
    x = 472,476.39

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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.