Home / 891,154.50-1,336,709.67-260,073.78

Finding the Fourth Proportional to 891,154.50, 1,336,709.67 and 260,073.78

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Solution

The fourth proportional to 891,154.50, 1,336,709.67 and 260,073.78 is: 390,104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,154.50 : 1,336,709.67 = 260,073.78 : x
  2. Step 2: Convert to fraction form
    891,154.50/1,336,709.67 = 260,073.78/x
  3. Step 3: Cross multiply
    891,154.50x = 1,336,709.67 × 260,073.78
  4. Step 4: Simplify right side
    891,154.50x = 347,643,136,639.45
  5. Step 5: Solve for x
    x = 347,643,136,639.45/891,154.50
  6. Step 6: Final answer
    x = 390,104.23

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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.