Home / 772,187.20-1,157,740.80-456,481.60

Finding the Fourth Proportional to 772,187.20, 1,157,740.80 and 456,481.60

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Solution

The fourth proportional to 772,187.20, 1,157,740.80 and 456,481.60 is: 684,403.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,187.20 : 1,157,740.80 = 456,481.60 : x
  2. Step 2: Convert to fraction form
    772,187.20/1,157,740.80 = 456,481.60/x
  3. Step 3: Cross multiply
    772,187.20x = 1,157,740.80 × 456,481.60
  4. Step 4: Simplify right side
    772,187.20x = 528,487,372,769.28
  5. Step 5: Solve for x
    x = 528,487,372,769.28/772,187.20
  6. Step 6: Final answer
    x = 684,403.18

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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.