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Finding the Fourth Proportional to 527,051.84, 727,330.64 and 285,334.32

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Solution

The fourth proportional to 527,051.84, 727,330.64 and 285,334.32 is: 393,760.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,051.84 : 727,330.64 = 285,334.32 : x
  2. Step 2: Convert to fraction form
    527,051.84/727,330.64 = 285,334.32/x
  3. Step 3: Cross multiply
    527,051.84x = 727,330.64 × 285,334.32
  4. Step 4: Simplify right side
    527,051.84x = 207,532,393,579.57
  5. Step 5: Solve for x
    x = 207,532,393,579.57/527,051.84
  6. Step 6: Final answer
    x = 393,760.87

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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.