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Finding the Fourth Proportional to 449,079.93, 619,730.87 and 247,875.93

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Solution

The fourth proportional to 449,079.93, 619,730.87 and 247,875.93 is: 342,069.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,079.93 : 619,730.87 = 247,875.93 : x
  2. Step 2: Convert to fraction form
    449,079.93/619,730.87 = 247,875.93/x
  3. Step 3: Cross multiply
    449,079.93x = 619,730.87 × 247,875.93
  4. Step 4: Simplify right side
    449,079.93x = 153,616,364,511.58
  5. Step 5: Solve for x
    x = 153,616,364,511.58/449,079.93
  6. Step 6: Final answer
    x = 342,069.09

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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.