Home / 787,431.61-1,181,335.56-254,953.23

Finding the Fourth Proportional to 787,431.61, 1,181,335.56 and 254,953.23

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Solution

The fourth proportional to 787,431.61, 1,181,335.56 and 254,953.23 is: 382,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,431.61 : 1,181,335.56 = 254,953.23 : x
  2. Step 2: Convert to fraction form
    787,431.61/1,181,335.56 = 254,953.23/x
  3. Step 3: Cross multiply
    787,431.61x = 1,181,335.56 × 254,953.23
  4. Step 4: Simplify right side
    787,431.61x = 301,185,316,735.86
  5. Step 5: Solve for x
    x = 301,185,316,735.86/787,431.61
  6. Step 6: Final answer
    x = 382,490.76

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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.