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Finding the Fourth Proportional to 446,724, 616,479.12 and 245,520

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Solution

The fourth proportional to 446,724, 616,479.12 and 245,520 is: 338,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,724 : 616,479.12 = 245,520 : x
  2. Step 2: Convert to fraction form
    446,724/616,479.12 = 245,520/x
  3. Step 3: Cross multiply
    446,724x = 616,479.12 × 245,520
  4. Step 4: Simplify right side
    446,724x = 151,357,953,542.40
  5. Step 5: Solve for x
    x = 151,357,953,542.40/446,724
  6. Step 6: Final answer
    x = 338,817.60

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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.