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Finding the Fourth Proportional to 559,985.40, 839,978.10 and 493,500.60

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Solution

The fourth proportional to 559,985.40, 839,978.10 and 493,500.60 is: 740,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,985.40 : 839,978.10 = 493,500.60 : x
  2. Step 2: Convert to fraction form
    559,985.40/839,978.10 = 493,500.60/x
  3. Step 3: Cross multiply
    559,985.40x = 839,978.10 × 493,500.60
  4. Step 4: Simplify right side
    559,985.40x = 414,529,696,336.86
  5. Step 5: Solve for x
    x = 414,529,696,336.86/559,985.40
  6. Step 6: Final answer
    x = 740,250.90

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Similar ratio
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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.