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Finding the Fourth Proportional to 603,829.88, 904,941.06 and 319,459.74

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Solution

The fourth proportional to 603,829.88, 904,941.06 and 319,459.74 is: 478,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,829.88 : 904,941.06 = 319,459.74 : x
  2. Step 2: Convert to fraction form
    603,829.88/904,941.06 = 319,459.74/x
  3. Step 3: Cross multiply
    603,829.88x = 904,941.06 × 319,459.74
  4. Step 4: Simplify right side
    603,829.88x = 289,092,235,742.92
  5. Step 5: Solve for x
    x = 289,092,235,742.92/603,829.88
  6. Step 6: Final answer
    x = 478,764.38

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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.