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Finding the Fourth Proportional to 657,784.48, 907,783.44 and 371,200

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Solution

The fourth proportional to 657,784.48, 907,783.44 and 371,200 is: 512,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,784.48 : 907,783.44 = 371,200 : x
  2. Step 2: Convert to fraction form
    657,784.48/907,783.44 = 371,200/x
  3. Step 3: Cross multiply
    657,784.48x = 907,783.44 × 371,200
  4. Step 4: Simplify right side
    657,784.48x = 336,969,212,928
  5. Step 5: Solve for x
    x = 336,969,212,928/657,784.48
  6. Step 6: Final answer
    x = 512,279.06

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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.