Home / 772,405.20-1,156,858.20-457,477.20

Finding the Fourth Proportional to 772,405.20, 1,156,858.20 and 457,477.20

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Solution

The fourth proportional to 772,405.20, 1,156,858.20 and 457,477.20 is: 685,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,405.20 : 1,156,858.20 = 457,477.20 : x
  2. Step 2: Convert to fraction form
    772,405.20/1,156,858.20 = 457,477.20/x
  3. Step 3: Cross multiply
    772,405.20x = 1,156,858.20 × 457,477.20
  4. Step 4: Simplify right side
    772,405.20x = 529,236,250,133.04
  5. Step 5: Solve for x
    x = 529,236,250,133.04/772,405.20
  6. Step 6: Final answer
    x = 685,179.55

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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.