Home / 738,151.68-1,018,649.32-398,619.92

Finding the Fourth Proportional to 738,151.68, 1,018,649.32 and 398,619.92

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Solution

The fourth proportional to 738,151.68, 1,018,649.32 and 398,619.92 is: 550,095.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,151.68 : 1,018,649.32 = 398,619.92 : x
  2. Step 2: Convert to fraction form
    738,151.68/1,018,649.32 = 398,619.92/x
  3. Step 3: Cross multiply
    738,151.68x = 1,018,649.32 × 398,619.92
  4. Step 4: Simplify right side
    738,151.68x = 406,053,910,446.45
  5. Step 5: Solve for x
    x = 406,053,910,446.45/738,151.68
  6. Step 6: Final answer
    x = 550,095.49

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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.