Home / 772,235.37-1,065,641.27-449,997.93

Finding the Fourth Proportional to 772,235.37, 1,065,641.27 and 449,997.93

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Solution

The fourth proportional to 772,235.37, 1,065,641.27 and 449,997.93 is: 620,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,235.37 : 1,065,641.27 = 449,997.93 : x
  2. Step 2: Convert to fraction form
    772,235.37/1,065,641.27 = 449,997.93/x
  3. Step 3: Cross multiply
    772,235.37x = 1,065,641.27 × 449,997.93
  4. Step 4: Simplify right side
    772,235.37x = 479,536,363,372.58
  5. Step 5: Solve for x
    x = 479,536,363,372.58/772,235.37
  6. Step 6: Final answer
    x = 620,971.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.