Home / 657,850.54-907,841.32-385,923.07

Finding the Fourth Proportional to 657,850.54, 907,841.32 and 385,923.07

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Solution

The fourth proportional to 657,850.54, 907,841.32 and 385,923.07 is: 532,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,850.54 : 907,841.32 = 385,923.07 : x
  2. Step 2: Convert to fraction form
    657,850.54/907,841.32 = 385,923.07/x
  3. Step 3: Cross multiply
    657,850.54x = 907,841.32 × 385,923.07
  4. Step 4: Simplify right side
    657,850.54x = 350,356,904,748.05
  5. Step 5: Solve for x
    x = 350,356,904,748.05/657,850.54
  6. Step 6: Final answer
    x = 532,578.27

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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.