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Finding the Fourth Proportional to 655,630.93, 904,835.46 and 383,682.61

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Solution

The fourth proportional to 655,630.93, 904,835.46 and 383,682.61 is: 529,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,630.93 : 904,835.46 = 383,682.61 : x
  2. Step 2: Convert to fraction form
    655,630.93/904,835.46 = 383,682.61/x
  3. Step 3: Cross multiply
    655,630.93x = 904,835.46 × 383,682.61
  4. Step 4: Simplify right side
    655,630.93x = 347,169,630,913.35
  5. Step 5: Solve for x
    x = 347,169,630,913.35/655,630.93
  6. Step 6: Final answer
    x = 529,519.91

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1.5x scale

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.