Home / 959,710.89-1,439,877.24-285,797.78

Finding the Fourth Proportional to 959,710.89, 1,439,877.24 and 285,797.78

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Solution

The fourth proportional to 959,710.89, 1,439,877.24 and 285,797.78 is: 428,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,710.89 : 1,439,877.24 = 285,797.78 : x
  2. Step 2: Convert to fraction form
    959,710.89/1,439,877.24 = 285,797.78/x
  3. Step 3: Cross multiply
    959,710.89x = 1,439,877.24 × 285,797.78
  4. Step 4: Simplify right side
    959,710.89x = 411,513,711,465.14
  5. Step 5: Solve for x
    x = 411,513,711,465.14/959,710.89
  6. Step 6: Final answer
    x = 428,789.25

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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.