Home / 738,153.41-1,018,651.75-398,621.66

Finding the Fourth Proportional to 738,153.41, 1,018,651.75 and 398,621.66

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Solution

The fourth proportional to 738,153.41, 1,018,651.75 and 398,621.66 is: 550,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,153.41 : 1,018,651.75 = 398,621.66 : x
  2. Step 2: Convert to fraction form
    738,153.41/1,018,651.75 = 398,621.66/x
  3. Step 3: Cross multiply
    738,153.41x = 1,018,651.75 × 398,621.66
  4. Step 4: Simplify right side
    738,153.41x = 406,056,645,457.09
  5. Step 5: Solve for x
    x = 406,056,645,457.09/738,153.41
  6. Step 6: Final answer
    x = 550,097.91

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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.