Home / 746,643.60-1,119,965.40-214,117.20

Finding the Fourth Proportional to 746,643.60, 1,119,965.40 and 214,117.20

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Solution

The fourth proportional to 746,643.60, 1,119,965.40 and 214,117.20 is: 321,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,643.60 : 1,119,965.40 = 214,117.20 : x
  2. Step 2: Convert to fraction form
    746,643.60/1,119,965.40 = 214,117.20/x
  3. Step 3: Cross multiply
    746,643.60x = 1,119,965.40 × 214,117.20
  4. Step 4: Simplify right side
    746,643.60x = 239,803,855,544.88
  5. Step 5: Solve for x
    x = 239,803,855,544.88/746,643.60
  6. Step 6: Final answer
    x = 321,175.80

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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.