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Finding the Fourth Proportional to 680,877.92, 939,594.48 and 374,951.90

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Solution

The fourth proportional to 680,877.92, 939,594.48 and 374,951.90 is: 517,424.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,877.92 : 939,594.48 = 374,951.90 : x
  2. Step 2: Convert to fraction form
    680,877.92/939,594.48 = 374,951.90/x
  3. Step 3: Cross multiply
    680,877.92x = 939,594.48 × 374,951.90
  4. Step 4: Simplify right side
    680,877.92x = 352,302,735,505.51
  5. Step 5: Solve for x
    x = 352,302,735,505.51/680,877.92
  6. Step 6: Final answer
    x = 517,424.23

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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.