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Finding the Fourth Proportional to 615,710.72, 849,807.36 and 361,195.52

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Solution

The fourth proportional to 615,710.72, 849,807.36 and 361,195.52 is: 498,524.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,710.72 : 849,807.36 = 361,195.52 : x
  2. Step 2: Convert to fraction form
    615,710.72/849,807.36 = 361,195.52/x
  3. Step 3: Cross multiply
    615,710.72x = 849,807.36 × 361,195.52
  4. Step 4: Simplify right side
    615,710.72x = 306,946,611,295.03
  5. Step 5: Solve for x
    x = 306,946,611,295.03/615,710.72
  6. Step 6: Final answer
    x = 498,524.07

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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.