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Finding the Fourth Proportional to 559,640.30, 839,460.45 and 403,342.70

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Solution

The fourth proportional to 559,640.30, 839,460.45 and 403,342.70 is: 605,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,640.30 : 839,460.45 = 403,342.70 : x
  2. Step 2: Convert to fraction form
    559,640.30/839,460.45 = 403,342.70/x
  3. Step 3: Cross multiply
    559,640.30x = 839,460.45 × 403,342.70
  4. Step 4: Simplify right side
    559,640.30x = 338,590,244,446.22
  5. Step 5: Solve for x
    x = 338,590,244,446.22/559,640.30
  6. Step 6: Final answer
    x = 605,014.05

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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.