Home / 588,890.70-883,336.05-389,436.30

Finding the Fourth Proportional to 588,890.70, 883,336.05 and 389,436.30

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Solution

The fourth proportional to 588,890.70, 883,336.05 and 389,436.30 is: 584,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,890.70 : 883,336.05 = 389,436.30 : x
  2. Step 2: Convert to fraction form
    588,890.70/883,336.05 = 389,436.30/x
  3. Step 3: Cross multiply
    588,890.70x = 883,336.05 × 389,436.30
  4. Step 4: Simplify right side
    588,890.70x = 344,003,122,968.62
  5. Step 5: Solve for x
    x = 344,003,122,968.62/588,890.70
  6. Step 6: Final answer
    x = 584,154.45

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Half scale
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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.