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Finding the Fourth Proportional to 578,850.35, 798,374.21 and 507,105.81

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Solution

The fourth proportional to 578,850.35, 798,374.21 and 507,105.81 is: 699,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,850.35 : 798,374.21 = 507,105.81 : x
  2. Step 2: Convert to fraction form
    578,850.35/798,374.21 = 507,105.81/x
  3. Step 3: Cross multiply
    578,850.35x = 798,374.21 × 507,105.81
  4. Step 4: Simplify right side
    578,850.35x = 404,860,197,909.63
  5. Step 5: Solve for x
    x = 404,860,197,909.63/578,850.35
  6. Step 6: Final answer
    x = 699,421.19

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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.