Home / 738,151.17-1,018,648.62-398,619.42

Finding the Fourth Proportional to 738,151.17, 1,018,648.62 and 398,619.42

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Solution

The fourth proportional to 738,151.17, 1,018,648.62 and 398,619.42 is: 550,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,151.17 : 1,018,648.62 = 398,619.42 : x
  2. Step 2: Convert to fraction form
    738,151.17/1,018,648.62 = 398,619.42/x
  3. Step 3: Cross multiply
    738,151.17x = 1,018,648.62 × 398,619.42
  4. Step 4: Simplify right side
    738,151.17x = 406,053,122,088.20
  5. Step 5: Solve for x
    x = 406,053,122,088.20/738,151.17
  6. Step 6: Final answer
    x = 550,094.80

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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.