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Finding the Fourth Proportional to 657,578.07, 907,459.07 and 367,188.21

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Solution

The fourth proportional to 657,578.07, 907,459.07 and 367,188.21 is: 506,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,578.07 : 907,459.07 = 367,188.21 : x
  2. Step 2: Convert to fraction form
    657,578.07/907,459.07 = 367,188.21/x
  3. Step 3: Cross multiply
    657,578.07x = 907,459.07 × 367,188.21
  4. Step 4: Simplify right side
    657,578.07x = 333,208,269,725.62
  5. Step 5: Solve for x
    x = 333,208,269,725.62/657,578.07
  6. Step 6: Final answer
    x = 506,720.47

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1.5x scale

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.