Home / 746,521.60-1,119,782.40-447,923.20

Finding the Fourth Proportional to 746,521.60, 1,119,782.40 and 447,923.20

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Solution

The fourth proportional to 746,521.60, 1,119,782.40 and 447,923.20 is: 671,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,521.60 : 1,119,782.40 = 447,923.20 : x
  2. Step 2: Convert to fraction form
    746,521.60/1,119,782.40 = 447,923.20/x
  3. Step 3: Cross multiply
    746,521.60x = 1,119,782.40 × 447,923.20
  4. Step 4: Simplify right side
    746,521.60x = 501,576,515,911.68
  5. Step 5: Solve for x
    x = 501,576,515,911.68/746,521.60
  6. Step 6: Final answer
    x = 671,884.80

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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.