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Finding the Fourth Proportional to 662,306.34, 913,957.38 and 375,809.34

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Solution

The fourth proportional to 662,306.34, 913,957.38 and 375,809.34 is: 518,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,306.34 : 913,957.38 = 375,809.34 : x
  2. Step 2: Convert to fraction form
    662,306.34/913,957.38 = 375,809.34/x
  3. Step 3: Cross multiply
    662,306.34x = 913,957.38 × 375,809.34
  4. Step 4: Simplify right side
    662,306.34x = 343,473,719,765.93
  5. Step 5: Solve for x
    x = 343,473,719,765.93/662,306.34
  6. Step 6: Final answer
    x = 518,602.49

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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.