Home / 746,653.20-1,120,417.20-273,386.40

Finding the Fourth Proportional to 746,653.20, 1,120,417.20 and 273,386.40

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Solution

The fourth proportional to 746,653.20, 1,120,417.20 and 273,386.40 is: 410,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,653.20 : 1,120,417.20 = 273,386.40 : x
  2. Step 2: Convert to fraction form
    746,653.20/1,120,417.20 = 273,386.40/x
  3. Step 3: Cross multiply
    746,653.20x = 1,120,417.20 × 273,386.40
  4. Step 4: Simplify right side
    746,653.20x = 306,306,824,806.08
  5. Step 5: Solve for x
    x = 306,306,824,806.08/746,653.20
  6. Step 6: Final answer
    x = 410,239.75

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Double scale
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Similar ratio
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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.