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Finding the Fourth Proportional to 607,611.30, 910,979.55 and 341,453.40

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Solution

The fourth proportional to 607,611.30, 910,979.55 and 341,453.40 is: 511,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,611.30 : 910,979.55 = 341,453.40 : x
  2. Step 2: Convert to fraction form
    607,611.30/910,979.55 = 341,453.40/x
  3. Step 3: Cross multiply
    607,611.30x = 910,979.55 × 341,453.40
  4. Step 4: Simplify right side
    607,611.30x = 311,057,064,677.97
  5. Step 5: Solve for x
    x = 311,057,064,677.97/607,611.30
  6. Step 6: Final answer
    x = 511,934.30

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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.