Home / 389,056.41-583,584.66-300,439.17

Finding the Fourth Proportional to 389,056.41, 583,584.66 and 300,439.17

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Solution

The fourth proportional to 389,056.41, 583,584.66 and 300,439.17 is: 450,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,056.41 : 583,584.66 = 300,439.17 : x
  2. Step 2: Convert to fraction form
    389,056.41/583,584.66 = 300,439.17/x
  3. Step 3: Cross multiply
    389,056.41x = 583,584.66 × 300,439.17
  4. Step 4: Simplify right side
    389,056.41x = 175,331,690,875.13
  5. Step 5: Solve for x
    x = 175,331,690,875.13/389,056.41
  6. Step 6: Final answer
    x = 450,658.79

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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.