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Finding the Fourth Proportional to 448,959.08, 619,477.80 and 257,980.52

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Solution

The fourth proportional to 448,959.08, 619,477.80 and 257,980.52 is: 355,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,959.08 : 619,477.80 = 257,980.52 : x
  2. Step 2: Convert to fraction form
    448,959.08/619,477.80 = 257,980.52/x
  3. Step 3: Cross multiply
    448,959.08x = 619,477.80 × 257,980.52
  4. Step 4: Simplify right side
    448,959.08x = 159,813,204,972.46
  5. Step 5: Solve for x
    x = 159,813,204,972.46/448,959.08
  6. Step 6: Final answer
    x = 355,963.86

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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.