Home / 838,427.25-1,157,032.35-456,456.78

Finding the Fourth Proportional to 838,427.25, 1,157,032.35 and 456,456.78

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Solution

The fourth proportional to 838,427.25, 1,157,032.35 and 456,456.78 is: 629,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,427.25 : 1,157,032.35 = 456,456.78 : x
  2. Step 2: Convert to fraction form
    838,427.25/1,157,032.35 = 456,456.78/x
  3. Step 3: Cross multiply
    838,427.25x = 1,157,032.35 × 456,456.78
  4. Step 4: Simplify right side
    838,427.25x = 528,135,260,836.83
  5. Step 5: Solve for x
    x = 528,135,260,836.83/838,427.25
  6. Step 6: Final answer
    x = 629,911.85

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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.