Home / 389,731.70-537,875.12-324,204.77

Finding the Fourth Proportional to 389,731.70, 537,875.12 and 324,204.77

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Solution

The fourth proportional to 389,731.70, 537,875.12 and 324,204.77 is: 447,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,731.70 : 537,875.12 = 324,204.77 : x
  2. Step 2: Convert to fraction form
    389,731.70/537,875.12 = 324,204.77/x
  3. Step 3: Cross multiply
    389,731.70x = 537,875.12 × 324,204.77
  4. Step 4: Simplify right side
    389,731.70x = 174,381,679,568.32
  5. Step 5: Solve for x
    x = 174,381,679,568.32/389,731.70
  6. Step 6: Final answer
    x = 447,440.33

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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.