Home / 738,179.57-1,018,687.71-398,647.82

Finding the Fourth Proportional to 738,179.57, 1,018,687.71 and 398,647.82

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Solution

The fourth proportional to 738,179.57, 1,018,687.71 and 398,647.82 is: 550,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,179.57 : 1,018,687.71 = 398,647.82 : x
  2. Step 2: Convert to fraction form
    738,179.57/1,018,687.71 = 398,647.82/x
  3. Step 3: Cross multiply
    738,179.57x = 1,018,687.71 × 398,647.82
  4. Step 4: Simplify right side
    738,179.57x = 406,097,634,852.29
  5. Step 5: Solve for x
    x = 406,097,634,852.29/738,179.57
  6. Step 6: Final answer
    x = 550,133.94

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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.