Home / 738,364.01-1,018,942.88-398,832.26

Finding the Fourth Proportional to 738,364.01, 1,018,942.88 and 398,832.26

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Solution

The fourth proportional to 738,364.01, 1,018,942.88 and 398,832.26 is: 550,388.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,364.01 : 1,018,942.88 = 398,832.26 : x
  2. Step 2: Convert to fraction form
    738,364.01/1,018,942.88 = 398,832.26/x
  3. Step 3: Cross multiply
    738,364.01x = 1,018,942.88 × 398,832.26
  4. Step 4: Simplify right side
    738,364.01x = 406,387,284,552.43
  5. Step 5: Solve for x
    x = 406,387,284,552.43/738,364.01
  6. Step 6: Final answer
    x = 550,388.81

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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.