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Finding the Fourth Proportional to 527,213.68, 727,555.26 and 285,496.52

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Solution

The fourth proportional to 527,213.68, 727,555.26 and 285,496.52 is: 393,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,213.68 : 727,555.26 = 285,496.52 : x
  2. Step 2: Convert to fraction form
    527,213.68/727,555.26 = 285,496.52/x
  3. Step 3: Cross multiply
    527,213.68x = 727,555.26 × 285,496.52
  4. Step 4: Simplify right side
    527,213.68x = 207,714,492,270.53
  5. Step 5: Solve for x
    x = 207,714,492,270.53/527,213.68
  6. Step 6: Final answer
    x = 393,985.40

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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.