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Finding the Fourth Proportional to 527,208.73, 727,574.53 and 309,426.84

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Solution

The fourth proportional to 527,208.73, 727,574.53 and 309,426.84 is: 427,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,208.73 : 727,574.53 = 309,426.84 : x
  2. Step 2: Convert to fraction form
    527,208.73/727,574.53 = 309,426.84/x
  3. Step 3: Cross multiply
    527,208.73x = 727,574.53 × 309,426.84
  4. Step 4: Simplify right side
    527,208.73x = 225,131,089,577.93
  5. Step 5: Solve for x
    x = 225,131,089,577.93/527,208.73
  6. Step 6: Final answer
    x = 427,024.59

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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.