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Finding the Fourth Proportional to 655,951.70, 904,904.06 and 383,852.76

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Solution

The fourth proportional to 655,951.70, 904,904.06 and 383,852.76 is: 529,535.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,951.70 : 904,904.06 = 383,852.76 : x
  2. Step 2: Convert to fraction form
    655,951.70/904,904.06 = 383,852.76/x
  3. Step 3: Cross multiply
    655,951.70x = 904,904.06 × 383,852.76
  4. Step 4: Simplify right side
    655,951.70x = 347,349,915,653.55
  5. Step 5: Solve for x
    x = 347,349,915,653.55/655,951.70
  6. Step 6: Final answer
    x = 529,535.81

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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.