Home / 907,838.40-1,361,887.20-308,827.20

Finding the Fourth Proportional to 907,838.40, 1,361,887.20 and 308,827.20

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Solution

The fourth proportional to 907,838.40, 1,361,887.20 and 308,827.20 is: 463,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,838.40 : 1,361,887.20 = 308,827.20 : x
  2. Step 2: Convert to fraction form
    907,838.40/1,361,887.20 = 308,827.20/x
  3. Step 3: Cross multiply
    907,838.40x = 1,361,887.20 × 308,827.20
  4. Step 4: Simplify right side
    907,838.40x = 420,587,810,691.84
  5. Step 5: Solve for x
    x = 420,587,810,691.84/907,838.40
  6. Step 6: Final answer
    x = 463,284.89

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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.