Home / 738,167.97-1,018,671.76-398,636.22

Finding the Fourth Proportional to 738,167.97, 1,018,671.76 and 398,636.22

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Solution

The fourth proportional to 738,167.97, 1,018,671.76 and 398,636.22 is: 550,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,167.97 : 1,018,671.76 = 398,636.22 : x
  2. Step 2: Convert to fraction form
    738,167.97/1,018,671.76 = 398,636.22/x
  3. Step 3: Cross multiply
    738,167.97x = 1,018,671.76 × 398,636.22
  4. Step 4: Simplify right side
    738,167.97x = 406,079,459,827.15
  5. Step 5: Solve for x
    x = 406,079,459,827.15/738,167.97
  6. Step 6: Final answer
    x = 550,117.96

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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.