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Finding the Fourth Proportional to 527,085.63, 727,377.84 and 285,370.29

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Solution

The fourth proportional to 527,085.63, 727,377.84 and 285,370.29 is: 393,810.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,085.63 : 727,377.84 = 285,370.29 : x
  2. Step 2: Convert to fraction form
    527,085.63/727,377.84 = 285,370.29/x
  3. Step 3: Cross multiply
    527,085.63x = 727,377.84 × 285,370.29
  4. Step 4: Simplify right side
    527,085.63x = 207,572,025,140.37
  5. Step 5: Solve for x
    x = 207,572,025,140.37/527,085.63
  6. Step 6: Final answer
    x = 393,810.82

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1.5x scale

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.