Home / 880,964.62-1,215,522.93-518,404.30

Finding the Fourth Proportional to 880,964.62, 1,215,522.93 and 518,404.30

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Solution

The fourth proportional to 880,964.62, 1,215,522.93 and 518,404.30 is: 715,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,964.62 : 1,215,522.93 = 518,404.30 : x
  2. Step 2: Convert to fraction form
    880,964.62/1,215,522.93 = 518,404.30/x
  3. Step 3: Cross multiply
    880,964.62x = 1,215,522.93 × 518,404.30
  4. Step 4: Simplify right side
    880,964.62x = 630,132,313,660.60
  5. Step 5: Solve for x
    x = 630,132,313,660.60/880,964.62
  6. Step 6: Final answer
    x = 715,275.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.