Home / 738,181.98-1,018,691.13-398,650.23

Finding the Fourth Proportional to 738,181.98, 1,018,691.13 and 398,650.23

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Solution

The fourth proportional to 738,181.98, 1,018,691.13 and 398,650.23 is: 550,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,181.98 : 1,018,691.13 = 398,650.23 : x
  2. Step 2: Convert to fraction form
    738,181.98/1,018,691.13 = 398,650.23/x
  3. Step 3: Cross multiply
    738,181.98x = 1,018,691.13 × 398,650.23
  4. Step 4: Simplify right side
    738,181.98x = 406,101,453,273.46
  5. Step 5: Solve for x
    x = 406,101,453,273.46/738,181.98
  6. Step 6: Final answer
    x = 550,137.32

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Double scale
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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.