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Finding the Fourth Proportional to 480,731.52, 720,792 and 255,953.28

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Solution

The fourth proportional to 480,731.52, 720,792 and 255,953.28 is: 383,767.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,731.52 : 720,792 = 255,953.28 : x
  2. Step 2: Convert to fraction form
    480,731.52/720,792 = 255,953.28/x
  3. Step 3: Cross multiply
    480,731.52x = 720,792 × 255,953.28
  4. Step 4: Simplify right side
    480,731.52x = 184,489,076,597.76
  5. Step 5: Solve for x
    x = 184,489,076,597.76/480,731.52
  6. Step 6: Final answer
    x = 383,767.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.