Home / 774,017.20-1,161,025.80-455,152.60

Finding the Fourth Proportional to 774,017.20, 1,161,025.80 and 455,152.60

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Solution

The fourth proportional to 774,017.20, 1,161,025.80 and 455,152.60 is: 682,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,017.20 : 1,161,025.80 = 455,152.60 : x
  2. Step 2: Convert to fraction form
    774,017.20/1,161,025.80 = 455,152.60/x
  3. Step 3: Cross multiply
    774,017.20x = 1,161,025.80 × 455,152.60
  4. Step 4: Simplify right side
    774,017.20x = 528,443,911,537.08
  5. Step 5: Solve for x
    x = 528,443,911,537.08/774,017.20
  6. Step 6: Final answer
    x = 682,728.90

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Double scale
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Similar ratio
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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.