Home / 829,838.52-1,145,320.56-480,930.21

Finding the Fourth Proportional to 829,838.52, 1,145,320.56 and 480,930.21

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Solution

The fourth proportional to 829,838.52, 1,145,320.56 and 480,930.21 is: 663,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,838.52 : 1,145,320.56 = 480,930.21 : x
  2. Step 2: Convert to fraction form
    829,838.52/1,145,320.56 = 480,930.21/x
  3. Step 3: Cross multiply
    829,838.52x = 1,145,320.56 × 480,930.21
  4. Step 4: Simplify right side
    829,838.52x = 550,819,257,438.12
  5. Step 5: Solve for x
    x = 550,819,257,438.12/829,838.52
  6. Step 6: Final answer
    x = 663,766.80

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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.