Home / 719,915.20-1,080,002.40-299,233.60

Finding the Fourth Proportional to 719,915.20, 1,080,002.40 and 299,233.60

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Solution

The fourth proportional to 719,915.20, 1,080,002.40 and 299,233.60 is: 448,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,915.20 : 1,080,002.40 = 299,233.60 : x
  2. Step 2: Convert to fraction form
    719,915.20/1,080,002.40 = 299,233.60/x
  3. Step 3: Cross multiply
    719,915.20x = 1,080,002.40 × 299,233.60
  4. Step 4: Simplify right side
    719,915.20x = 323,173,006,160.64
  5. Step 5: Solve for x
    x = 323,173,006,160.64/719,915.20
  6. Step 6: Final answer
    x = 448,904.27

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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.