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Finding the Fourth Proportional to 629,063.70, 943,595.55 and 155,749.07

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Solution

The fourth proportional to 629,063.70, 943,595.55 and 155,749.07 is: 233,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,063.70 : 943,595.55 = 155,749.07 : x
  2. Step 2: Convert to fraction form
    629,063.70/943,595.55 = 155,749.07/x
  3. Step 3: Cross multiply
    629,063.70x = 943,595.55 × 155,749.07
  4. Step 4: Simplify right side
    629,063.70x = 146,964,124,650.66
  5. Step 5: Solve for x
    x = 146,964,124,650.66/629,063.70
  6. Step 6: Final answer
    x = 233,623.60

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Double scale
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Similar ratio
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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.