Home / 744,014.60-1,116,021.90-520,065.80

Finding the Fourth Proportional to 744,014.60, 1,116,021.90 and 520,065.80

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Solution

The fourth proportional to 744,014.60, 1,116,021.90 and 520,065.80 is: 780,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,014.60 : 1,116,021.90 = 520,065.80 : x
  2. Step 2: Convert to fraction form
    744,014.60/1,116,021.90 = 520,065.80/x
  3. Step 3: Cross multiply
    744,014.60x = 1,116,021.90 × 520,065.80
  4. Step 4: Simplify right side
    744,014.60x = 580,404,822,241.02
  5. Step 5: Solve for x
    x = 580,404,822,241.02/744,014.60
  6. Step 6: Final answer
    x = 780,098.70

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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.