Home / 753,485.20-1,131,102.60-433,891.60

Finding the Fourth Proportional to 753,485.20, 1,131,102.60 and 433,891.60

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Solution

The fourth proportional to 753,485.20, 1,131,102.60 and 433,891.60 is: 651,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,485.20 : 1,131,102.60 = 433,891.60 : x
  2. Step 2: Convert to fraction form
    753,485.20/1,131,102.60 = 433,891.60/x
  3. Step 3: Cross multiply
    753,485.20x = 1,131,102.60 × 433,891.60
  4. Step 4: Simplify right side
    753,485.20x = 490,775,916,878.16
  5. Step 5: Solve for x
    x = 490,775,916,878.16/753,485.20
  6. Step 6: Final answer
    x = 651,341.15

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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.