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Finding the Fourth Proportional to 511,242.40, 766,863.60 and 290,058.40

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Solution

The fourth proportional to 511,242.40, 766,863.60 and 290,058.40 is: 435,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,242.40 : 766,863.60 = 290,058.40 : x
  2. Step 2: Convert to fraction form
    511,242.40/766,863.60 = 290,058.40/x
  3. Step 3: Cross multiply
    511,242.40x = 766,863.60 × 290,058.40
  4. Step 4: Simplify right side
    511,242.40x = 222,435,228,834.24
  5. Step 5: Solve for x
    x = 222,435,228,834.24/511,242.40
  6. Step 6: Final answer
    x = 435,087.60

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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.