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Finding the Fourth Proportional to 673,992.90, 1,010,711.52 and 274,363.20

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Solution

The fourth proportional to 673,992.90, 1,010,711.52 and 274,363.20 is: 411,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,992.90 : 1,010,711.52 = 274,363.20 : x
  2. Step 2: Convert to fraction form
    673,992.90/1,010,711.52 = 274,363.20/x
  3. Step 3: Cross multiply
    673,992.90x = 1,010,711.52 × 274,363.20
  4. Step 4: Simplify right side
    673,992.90x = 277,302,046,904.06
  5. Step 5: Solve for x
    x = 277,302,046,904.06/673,992.90
  6. Step 6: Final answer
    x = 411,431.70

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Double scale
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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.