Home / 384,209.35-529,715.93-315,043.96

Finding the Fourth Proportional to 384,209.35, 529,715.93 and 315,043.96

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Solution

The fourth proportional to 384,209.35, 529,715.93 and 315,043.96 is: 434,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,209.35 : 529,715.93 = 315,043.96 : x
  2. Step 2: Convert to fraction form
    384,209.35/529,715.93 = 315,043.96/x
  3. Step 3: Cross multiply
    384,209.35x = 529,715.93 × 315,043.96
  4. Step 4: Simplify right side
    384,209.35x = 166,883,803,134.90
  5. Step 5: Solve for x
    x = 166,883,803,134.90/384,209.35
  6. Step 6: Final answer
    x = 434,356.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.