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Finding the Fourth Proportional to 526,901.80, 727,124.43 and 285,184.33

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Solution

The fourth proportional to 526,901.80, 727,124.43 and 285,184.33 is: 393,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,901.80 : 727,124.43 = 285,184.33 : x
  2. Step 2: Convert to fraction form
    526,901.80/727,124.43 = 285,184.33/x
  3. Step 3: Cross multiply
    526,901.80x = 727,124.43 × 285,184.33
  4. Step 4: Simplify right side
    526,901.80x = 207,364,493,396.18
  5. Step 5: Solve for x
    x = 207,364,493,396.18/526,901.80
  6. Step 6: Final answer
    x = 393,554.35

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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.