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Finding the Fourth Proportional to 553,790.05, 830,685.08 and 301,847.65

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Solution

The fourth proportional to 553,790.05, 830,685.08 and 301,847.65 is: 452,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,790.05 : 830,685.08 = 301,847.65 : x
  2. Step 2: Convert to fraction form
    553,790.05/830,685.08 = 301,847.65/x
  3. Step 3: Cross multiply
    553,790.05x = 830,685.08 × 301,847.65
  4. Step 4: Simplify right side
    553,790.05x = 250,740,337,778.82
  5. Step 5: Solve for x
    x = 250,740,337,778.82/553,790.05
  6. Step 6: Final answer
    x = 452,771.48

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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.