Home / 772,109.20-1,157,623.80-456,403.60

Finding the Fourth Proportional to 772,109.20, 1,157,623.80 and 456,403.60

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Solution

The fourth proportional to 772,109.20, 1,157,623.80 and 456,403.60 is: 684,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,109.20 : 1,157,623.80 = 456,403.60 : x
  2. Step 2: Convert to fraction form
    772,109.20/1,157,623.80 = 456,403.60/x
  3. Step 3: Cross multiply
    772,109.20x = 1,157,623.80 × 456,403.60
  4. Step 4: Simplify right side
    772,109.20x = 528,343,669,765.68
  5. Step 5: Solve for x
    x = 528,343,669,765.68/772,109.20
  6. Step 6: Final answer
    x = 684,286.20

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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.