Home / 527,137.65-727,446.90-285,415.23

Finding the Fourth Proportional to 527,137.65, 727,446.90 and 285,415.23

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Solution

The fourth proportional to 527,137.65, 727,446.90 and 285,415.23 is: 393,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,137.65 : 727,446.90 = 285,415.23 : x
  2. Step 2: Convert to fraction form
    527,137.65/727,446.90 = 285,415.23/x
  3. Step 3: Cross multiply
    527,137.65x = 727,446.90 × 285,415.23
  4. Step 4: Simplify right side
    527,137.65x = 207,624,424,276.29
  5. Step 5: Solve for x
    x = 207,624,424,276.29/527,137.65
  6. Step 6: Final answer
    x = 393,871.36

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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.