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Finding the Fourth Proportional to 611,802.92, 844,345.11 and 370,144.89

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Solution

The fourth proportional to 611,802.92, 844,345.11 and 370,144.89 is: 510,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,802.92 : 844,345.11 = 370,144.89 : x
  2. Step 2: Convert to fraction form
    611,802.92/844,345.11 = 370,144.89/x
  3. Step 3: Cross multiply
    611,802.92x = 844,345.11 × 370,144.89
  4. Step 4: Simplify right side
    611,802.92x = 312,530,029,251.03
  5. Step 5: Solve for x
    x = 312,530,029,251.03/611,802.92
  6. Step 6: Final answer
    x = 510,834.48

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Double scale
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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.