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Finding the Fourth Proportional to 655,561.98, 904,675.27 and 383,681.64

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Solution

The fourth proportional to 655,561.98, 904,675.27 and 383,681.64 is: 529,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,561.98 : 904,675.27 = 383,681.64 : x
  2. Step 2: Convert to fraction form
    655,561.98/904,675.27 = 383,681.64/x
  3. Step 3: Cross multiply
    655,561.98x = 904,675.27 × 383,681.64
  4. Step 4: Simplify right side
    655,561.98x = 347,107,291,261.04
  5. Step 5: Solve for x
    x = 347,107,291,261.04/655,561.98
  6. Step 6: Final answer
    x = 529,480.51

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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.