Home / 1,153,228.40-1,729,838.52-311,780

Finding the Fourth Proportional to 1,153,228.40, 1,729,838.52 and 311,780

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Solution

The fourth proportional to 1,153,228.40, 1,729,838.52 and 311,780 is: 467,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,228.40 : 1,729,838.52 = 311,780 : x
  2. Step 2: Convert to fraction form
    1,153,228.40/1,729,838.52 = 311,780/x
  3. Step 3: Cross multiply
    1,153,228.40x = 1,729,838.52 × 311,780
  4. Step 4: Simplify right side
    1,153,228.40x = 539,329,053,765.60
  5. Step 5: Solve for x
    x = 539,329,053,765.60/1,153,228.40
  6. Step 6: Final answer
    x = 467,668.90

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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.