Home / 907,838.50-1,361,363.88-308,638.72

Finding the Fourth Proportional to 907,838.50, 1,361,363.88 and 308,638.72

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Solution

The fourth proportional to 907,838.50, 1,361,363.88 and 308,638.72 is: 462,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,838.50 : 1,361,363.88 = 308,638.72 : x
  2. Step 2: Convert to fraction form
    907,838.50/1,361,363.88 = 308,638.72/x
  3. Step 3: Cross multiply
    907,838.50x = 1,361,363.88 × 308,638.72
  4. Step 4: Simplify right side
    907,838.50x = 420,169,605,377.43
  5. Step 5: Solve for x
    x = 420,169,605,377.43/907,838.50
  6. Step 6: Final answer
    x = 462,824.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.