Home / 725,422.55-1,087,403.90-299,269.20

Finding the Fourth Proportional to 725,422.55, 1,087,403.90 and 299,269.20

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Solution

The fourth proportional to 725,422.55, 1,087,403.90 and 299,269.20 is: 448,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,422.55 : 1,087,403.90 = 299,269.20 : x
  2. Step 2: Convert to fraction form
    725,422.55/1,087,403.90 = 299,269.20/x
  3. Step 3: Cross multiply
    725,422.55x = 1,087,403.90 × 299,269.20
  4. Step 4: Simplify right side
    725,422.55x = 325,426,495,229.88
  5. Step 5: Solve for x
    x = 325,426,495,229.88/725,422.55
  6. Step 6: Final answer
    x = 448,602.67

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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.