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Finding the Fourth Proportional to 662,354.22, 913,996.71 and 375,874.31

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Solution

The fourth proportional to 662,354.22, 913,996.71 and 375,874.31 is: 518,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,354.22 : 913,996.71 = 375,874.31 : x
  2. Step 2: Convert to fraction form
    662,354.22/913,996.71 = 375,874.31/x
  3. Step 3: Cross multiply
    662,354.22x = 913,996.71 × 375,874.31
  4. Step 4: Simplify right side
    662,354.22x = 343,547,878,143.54
  5. Step 5: Solve for x
    x = 343,547,878,143.54/662,354.22
  6. Step 6: Final answer
    x = 518,676.97

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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.