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Finding the Fourth Proportional to 624,940.12, 862,417.11 and 338,460.22

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Solution

The fourth proportional to 624,940.12, 862,417.11 and 338,460.22 is: 467,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,940.12 : 862,417.11 = 338,460.22 : x
  2. Step 2: Convert to fraction form
    624,940.12/862,417.11 = 338,460.22/x
  3. Step 3: Cross multiply
    624,940.12x = 862,417.11 × 338,460.22
  4. Step 4: Simplify right side
    624,940.12x = 291,893,884,782.36
  5. Step 5: Solve for x
    x = 291,893,884,782.36/624,940.12
  6. Step 6: Final answer
    x = 467,074.97

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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.