Home / 845,466.39-1,267,830.95-319,785.75

Finding the Fourth Proportional to 845,466.39, 1,267,830.95 and 319,785.75

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Solution

The fourth proportional to 845,466.39, 1,267,830.95 and 319,785.75 is: 479,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,466.39 : 1,267,830.95 = 319,785.75 : x
  2. Step 2: Convert to fraction form
    845,466.39/1,267,830.95 = 319,785.75/x
  3. Step 3: Cross multiply
    845,466.39x = 1,267,830.95 × 319,785.75
  4. Step 4: Simplify right side
    845,466.39x = 405,434,269,620.03
  5. Step 5: Solve for x
    x = 405,434,269,620.03/845,466.39
  6. Step 6: Final answer
    x = 479,539.19

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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.