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Finding the Fourth Proportional to 617,425.40, 926,138.10 and 285,001.40

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Solution

The fourth proportional to 617,425.40, 926,138.10 and 285,001.40 is: 427,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,425.40 : 926,138.10 = 285,001.40 : x
  2. Step 2: Convert to fraction form
    617,425.40/926,138.10 = 285,001.40/x
  3. Step 3: Cross multiply
    617,425.40x = 926,138.10 × 285,001.40
  4. Step 4: Simplify right side
    617,425.40x = 263,950,655,093.34
  5. Step 5: Solve for x
    x = 263,950,655,093.34/617,425.40
  6. Step 6: Final answer
    x = 427,502.10

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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.