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Finding the Fourth Proportional to 648,456.66, 894,868.02 and 376,683.66

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Solution

The fourth proportional to 648,456.66, 894,868.02 and 376,683.66 is: 519,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,456.66 : 894,868.02 = 376,683.66 : x
  2. Step 2: Convert to fraction form
    648,456.66/894,868.02 = 376,683.66/x
  3. Step 3: Cross multiply
    648,456.66x = 894,868.02 × 376,683.66
  4. Step 4: Simplify right side
    648,456.66x = 337,082,160,990.55
  5. Step 5: Solve for x
    x = 337,082,160,990.55/648,456.66
  6. Step 6: Final answer
    x = 519,822.19

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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.