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Finding the Fourth Proportional to 607,616.80, 910,987.80 and 341,458.90

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Solution

The fourth proportional to 607,616.80, 910,987.80 and 341,458.90 is: 511,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,616.80 : 910,987.80 = 341,458.90 : x
  2. Step 2: Convert to fraction form
    607,616.80/910,987.80 = 341,458.90/x
  3. Step 3: Cross multiply
    607,616.80x = 910,987.80 × 341,458.90
  4. Step 4: Simplify right side
    607,616.80x = 311,064,892,101.42
  5. Step 5: Solve for x
    x = 311,064,892,101.42/607,616.80
  6. Step 6: Final answer
    x = 511,942.55

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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.