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Finding the Fourth Proportional to 559,972.05, 839,958.08 and 307,154.85

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Solution

The fourth proportional to 559,972.05, 839,958.08 and 307,154.85 is: 460,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,972.05 : 839,958.08 = 307,154.85 : x
  2. Step 2: Convert to fraction form
    559,972.05/839,958.08 = 307,154.85/x
  3. Step 3: Cross multiply
    559,972.05x = 839,958.08 × 307,154.85
  4. Step 4: Simplify right side
    559,972.05x = 257,997,196,532.91
  5. Step 5: Solve for x
    x = 257,997,196,532.91/559,972.05
  6. Step 6: Final answer
    x = 460,732.28

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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.