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Finding the Fourth Proportional to 655,562.23, 904,675.63 and 383,681.88

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Solution

The fourth proportional to 655,562.23, 904,675.63 and 383,681.88 is: 529,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,562.23 : 904,675.63 = 383,681.88 : x
  2. Step 2: Convert to fraction form
    655,562.23/904,675.63 = 383,681.88/x
  3. Step 3: Cross multiply
    655,562.23x = 904,675.63 × 383,681.88
  4. Step 4: Simplify right side
    655,562.23x = 347,107,646,508.58
  5. Step 5: Solve for x
    x = 347,107,646,508.58/655,562.23
  6. Step 6: Final answer
    x = 529,480.85

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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.