Home / 746,951.09-1,120,424.40-320,210.28

Finding the Fourth Proportional to 746,951.09, 1,120,424.40 and 320,210.28

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Solution

The fourth proportional to 746,951.09, 1,120,424.40 and 320,210.28 is: 480,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,951.09 : 1,120,424.40 = 320,210.28 : x
  2. Step 2: Convert to fraction form
    746,951.09/1,120,424.40 = 320,210.28/x
  3. Step 3: Cross multiply
    746,951.09x = 1,120,424.40 × 320,210.28
  4. Step 4: Simplify right side
    746,951.09x = 358,771,410,842.83
  5. Step 5: Solve for x
    x = 358,771,410,842.83/746,951.09
  6. Step 6: Final answer
    x = 480,314.47

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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.