Home / 780,972-1,171,339.63-268,715.04

Finding the Fourth Proportional to 780,972, 1,171,339.63 and 268,715.04

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Solution

The fourth proportional to 780,972, 1,171,339.63 and 268,715.04 is: 403,031.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,972 : 1,171,339.63 = 268,715.04 : x
  2. Step 2: Convert to fraction form
    780,972/1,171,339.63 = 268,715.04/x
  3. Step 3: Cross multiply
    780,972x = 1,171,339.63 × 268,715.04
  4. Step 4: Simplify right side
    780,972x = 314,756,575,529.04
  5. Step 5: Solve for x
    x = 314,756,575,529.04/780,972
  6. Step 6: Final answer
    x = 403,031.83

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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.