Home / 389,823.60-584,735.40-239,576.70

Finding the Fourth Proportional to 389,823.60, 584,735.40 and 239,576.70

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Solution

The fourth proportional to 389,823.60, 584,735.40 and 239,576.70 is: 359,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,823.60 : 584,735.40 = 239,576.70 : x
  2. Step 2: Convert to fraction form
    389,823.60/584,735.40 = 239,576.70/x
  3. Step 3: Cross multiply
    389,823.60x = 584,735.40 × 239,576.70
  4. Step 4: Simplify right side
    389,823.60x = 140,088,977,505.18
  5. Step 5: Solve for x
    x = 140,088,977,505.18/389,823.60
  6. Step 6: Final answer
    x = 359,365.05

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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.