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Finding the Fourth Proportional to 536,790.64, 740,772.60 and 307,351.48

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Solution

The fourth proportional to 536,790.64, 740,772.60 and 307,351.48 is: 424,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,790.64 : 740,772.60 = 307,351.48 : x
  2. Step 2: Convert to fraction form
    536,790.64/740,772.60 = 307,351.48/x
  3. Step 3: Cross multiply
    536,790.64x = 740,772.60 × 307,351.48
  4. Step 4: Simplify right side
    536,790.64x = 227,677,554,953.45
  5. Step 5: Solve for x
    x = 227,677,554,953.45/536,790.64
  6. Step 6: Final answer
    x = 424,145.91

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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.