Home / 527,501.39-727,950.92-285,790.50

Finding the Fourth Proportional to 527,501.39, 727,950.92 and 285,790.50

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Solution

The fourth proportional to 527,501.39, 727,950.92 and 285,790.50 is: 394,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,501.39 : 727,950.92 = 285,790.50 : x
  2. Step 2: Convert to fraction form
    527,501.39/727,950.92 = 285,790.50/x
  3. Step 3: Cross multiply
    527,501.39x = 727,950.92 × 285,790.50
  4. Step 4: Simplify right side
    527,501.39x = 208,041,455,973.31
  5. Step 5: Solve for x
    x = 208,041,455,973.31/527,501.39
  6. Step 6: Final answer
    x = 394,390.35

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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.