Home / 772,111.20-1,157,626.80-456,405.60

Finding the Fourth Proportional to 772,111.20, 1,157,626.80 and 456,405.60

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Solution

The fourth proportional to 772,111.20, 1,157,626.80 and 456,405.60 is: 684,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,111.20 : 1,157,626.80 = 456,405.60 : x
  2. Step 2: Convert to fraction form
    772,111.20/1,157,626.80 = 456,405.60/x
  3. Step 3: Cross multiply
    772,111.20x = 1,157,626.80 × 456,405.60
  4. Step 4: Simplify right side
    772,111.20x = 528,347,354,230.08
  5. Step 5: Solve for x
    x = 528,347,354,230.08/772,111.20
  6. Step 6: Final answer
    x = 684,289.20

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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.