Home / 865,705.20-1,297,943.40-333,020.40

Finding the Fourth Proportional to 865,705.20, 1,297,943.40 and 333,020.40

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Solution

The fourth proportional to 865,705.20, 1,297,943.40 and 333,020.40 is: 499,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,705.20 : 1,297,943.40 = 333,020.40 : x
  2. Step 2: Convert to fraction form
    865,705.20/1,297,943.40 = 333,020.40/x
  3. Step 3: Cross multiply
    865,705.20x = 1,297,943.40 × 333,020.40
  4. Step 4: Simplify right side
    865,705.20x = 432,241,630,245.36
  5. Step 5: Solve for x
    x = 432,241,630,245.36/865,705.20
  6. Step 6: Final answer
    x = 499,294.25

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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.