Home / 743,045.20-1,113,255.60-609,200.80

Finding the Fourth Proportional to 743,045.20, 1,113,255.60 and 609,200.80

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Solution

The fourth proportional to 743,045.20, 1,113,255.60 and 609,200.80 is: 912,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,045.20 : 1,113,255.60 = 609,200.80 : x
  2. Step 2: Convert to fraction form
    743,045.20/1,113,255.60 = 609,200.80/x
  3. Step 3: Cross multiply
    743,045.20x = 1,113,255.60 × 609,200.80
  4. Step 4: Simplify right side
    743,045.20x = 678,196,202,124.48
  5. Step 5: Solve for x
    x = 678,196,202,124.48/743,045.20
  6. Step 6: Final answer
    x = 912,725.37

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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.