Home / 838,455.90-1,157,067.56-456,481.77

Finding the Fourth Proportional to 838,455.90, 1,157,067.56 and 456,481.77

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Solution

The fourth proportional to 838,455.90, 1,157,067.56 and 456,481.77 is: 629,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,455.90 : 1,157,067.56 = 456,481.77 : x
  2. Step 2: Convert to fraction form
    838,455.90/1,157,067.56 = 456,481.77/x
  3. Step 3: Cross multiply
    838,455.90x = 1,157,067.56 × 456,481.77
  4. Step 4: Simplify right side
    838,455.90x = 528,180,247,798.38
  5. Step 5: Solve for x
    x = 528,180,247,798.38/838,455.90
  6. Step 6: Final answer
    x = 629,943.98

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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.