Home / 3,648,009.60-5,472,014.40-988,617.60

Finding the Fourth Proportional to 3,648,009.60, 5,472,014.40 and 988,617.60

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Solution

The fourth proportional to 3,648,009.60, 5,472,014.40 and 988,617.60 is: 1,482,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648,009.60 : 5,472,014.40 = 988,617.60 : x
  2. Step 2: Convert to fraction form
    3,648,009.60/5,472,014.40 = 988,617.60/x
  3. Step 3: Cross multiply
    3,648,009.60x = 5,472,014.40 × 988,617.60
  4. Step 4: Simplify right side
    3,648,009.60x = 5,409,729,743,293.44
  5. Step 5: Solve for x
    x = 5,409,729,743,293.44/3,648,009.60
  6. Step 6: Final answer
    x = 1,482,926.40

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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.