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Finding the Fourth Proportional to 516,985.38, 712,958.49 and 335,503.26

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Solution

The fourth proportional to 516,985.38, 712,958.49 and 335,503.26 is: 462,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,985.38 : 712,958.49 = 335,503.26 : x
  2. Step 2: Convert to fraction form
    516,985.38/712,958.49 = 335,503.26/x
  3. Step 3: Cross multiply
    516,985.38x = 712,958.49 × 335,503.26
  4. Step 4: Simplify right side
    516,985.38x = 239,199,897,639.68
  5. Step 5: Solve for x
    x = 239,199,897,639.68/516,985.38
  6. Step 6: Final answer
    x = 462,682.13

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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.