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Finding the Fourth Proportional to 661,017.87, 912,202.29 and 374,592.69

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Solution

The fourth proportional to 661,017.87, 912,202.29 and 374,592.69 is: 516,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,017.87 : 912,202.29 = 374,592.69 : x
  2. Step 2: Convert to fraction form
    661,017.87/912,202.29 = 374,592.69/x
  3. Step 3: Cross multiply
    661,017.87x = 912,202.29 × 374,592.69
  4. Step 4: Simplify right side
    661,017.87x = 341,704,309,635.26
  5. Step 5: Solve for x
    x = 341,704,309,635.26/661,017.87
  6. Step 6: Final answer
    x = 516,936.57

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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.