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Finding the Fourth Proportional to 524,124.63, 786,577.50 and 389,498.85

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Solution

The fourth proportional to 524,124.63, 786,577.50 and 389,498.85 is: 584,538.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,124.63 : 786,577.50 = 389,498.85 : x
  2. Step 2: Convert to fraction form
    524,124.63/786,577.50 = 389,498.85/x
  3. Step 3: Cross multiply
    524,124.63x = 786,577.50 × 389,498.85
  4. Step 4: Simplify right side
    524,124.63x = 306,371,031,685.88
  5. Step 5: Solve for x
    x = 306,371,031,685.88/524,124.63
  6. Step 6: Final answer
    x = 584,538.51

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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.