Home / 738,151.92-1,018,649.66-398,620.17

Finding the Fourth Proportional to 738,151.92, 1,018,649.66 and 398,620.17

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Solution

The fourth proportional to 738,151.92, 1,018,649.66 and 398,620.17 is: 550,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,151.92 : 1,018,649.66 = 398,620.17 : x
  2. Step 2: Convert to fraction form
    738,151.92/1,018,649.66 = 398,620.17/x
  3. Step 3: Cross multiply
    738,151.92x = 1,018,649.66 × 398,620.17
  4. Step 4: Simplify right side
    738,151.92x = 406,054,298,646.54
  5. Step 5: Solve for x
    x = 406,054,298,646.54/738,151.92
  6. Step 6: Final answer
    x = 550,095.84

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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.