Home / 869,123.30-1,304,268.15-395,564.90

Finding the Fourth Proportional to 869,123.30, 1,304,268.15 and 395,564.90

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Solution

The fourth proportional to 869,123.30, 1,304,268.15 and 395,564.90 is: 593,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,123.30 : 1,304,268.15 = 395,564.90 : x
  2. Step 2: Convert to fraction form
    869,123.30/1,304,268.15 = 395,564.90/x
  3. Step 3: Cross multiply
    869,123.30x = 1,304,268.15 × 395,564.90
  4. Step 4: Simplify right side
    869,123.30x = 515,922,700,327.94
  5. Step 5: Solve for x
    x = 515,922,700,327.94/869,123.30
  6. Step 6: Final answer
    x = 593,612.78

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1.5x scale

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.