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Finding the Fourth Proportional to 859,503, 1,289,254.56 and 268,527

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Solution

The fourth proportional to 859,503, 1,289,254.56 and 268,527 is: 402,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,503 : 1,289,254.56 = 268,527 : x
  2. Step 2: Convert to fraction form
    859,503/1,289,254.56 = 268,527/x
  3. Step 3: Cross multiply
    859,503x = 1,289,254.56 × 268,527
  4. Step 4: Simplify right side
    859,503x = 346,199,659,233.12
  5. Step 5: Solve for x
    x = 346,199,659,233.12/859,503
  6. Step 6: Final answer
    x = 402,790.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.