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Finding the Fourth Proportional to 683,313.90, 942,980.22 and 377,397.96

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Solution

The fourth proportional to 683,313.90, 942,980.22 and 377,397.96 is: 520,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,313.90 : 942,980.22 = 377,397.96 : x
  2. Step 2: Convert to fraction form
    683,313.90/942,980.22 = 377,397.96/x
  3. Step 3: Cross multiply
    683,313.90x = 942,980.22 × 377,397.96
  4. Step 4: Simplify right side
    683,313.90x = 355,878,811,348.35
  5. Step 5: Solve for x
    x = 355,878,811,348.35/683,313.90
  6. Step 6: Final answer
    x = 520,813.07

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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.