Home / 668,496.18-1,002,245.57-402,194.30

Finding the Fourth Proportional to 668,496.18, 1,002,245.57 and 402,194.30

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Solution

The fourth proportional to 668,496.18, 1,002,245.57 and 402,194.30 is: 602,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,496.18 : 1,002,245.57 = 402,194.30 : x
  2. Step 2: Convert to fraction form
    668,496.18/1,002,245.57 = 402,194.30/x
  3. Step 3: Cross multiply
    668,496.18x = 1,002,245.57 × 402,194.30
  4. Step 4: Simplify right side
    668,496.18x = 403,097,455,454.25
  5. Step 5: Solve for x
    x = 403,097,455,454.25/668,496.18
  6. Step 6: Final answer
    x = 602,991.41

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Double scale
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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.