Home / 947,282.31-1,419,965.85-407,890.35

Finding the Fourth Proportional to 947,282.31, 1,419,965.85 and 407,890.35

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Solution

The fourth proportional to 947,282.31, 1,419,965.85 and 407,890.35 is: 611,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,282.31 : 1,419,965.85 = 407,890.35 : x
  2. Step 2: Convert to fraction form
    947,282.31/1,419,965.85 = 407,890.35/x
  3. Step 3: Cross multiply
    947,282.31x = 1,419,965.85 × 407,890.35
  4. Step 4: Simplify right side
    947,282.31x = 579,190,367,544.55
  5. Step 5: Solve for x
    x = 579,190,367,544.55/947,282.31
  6. Step 6: Final answer
    x = 611,423.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.