Home / 988,720.40-1,483,080.60-323,872.40

Finding the Fourth Proportional to 988,720.40, 1,483,080.60 and 323,872.40

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Solution

The fourth proportional to 988,720.40, 1,483,080.60 and 323,872.40 is: 485,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,720.40 : 1,483,080.60 = 323,872.40 : x
  2. Step 2: Convert to fraction form
    988,720.40/1,483,080.60 = 323,872.40/x
  3. Step 3: Cross multiply
    988,720.40x = 1,483,080.60 × 323,872.40
  4. Step 4: Simplify right side
    988,720.40x = 480,328,873,315.44
  5. Step 5: Solve for x
    x = 480,328,873,315.44/988,720.40
  6. Step 6: Final answer
    x = 485,808.60

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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.