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Finding the Fourth Proportional to 715,571.18, 987,077.06 and 446,832.62

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Solution

The fourth proportional to 715,571.18, 987,077.06 and 446,832.62 is: 616,372.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,571.18 : 987,077.06 = 446,832.62 : x
  2. Step 2: Convert to fraction form
    715,571.18/987,077.06 = 446,832.62/x
  3. Step 3: Cross multiply
    715,571.18x = 987,077.06 × 446,832.62
  4. Step 4: Simplify right side
    715,571.18x = 441,058,228,861.70
  5. Step 5: Solve for x
    x = 441,058,228,861.70/715,571.18
  6. Step 6: Final answer
    x = 616,372.26

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1.5x scale

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.