Home / 668,878.20-1,003,317.30-403,457.40

Finding the Fourth Proportional to 668,878.20, 1,003,317.30 and 403,457.40

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Solution

The fourth proportional to 668,878.20, 1,003,317.30 and 403,457.40 is: 605,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,878.20 : 1,003,317.30 = 403,457.40 : x
  2. Step 2: Convert to fraction form
    668,878.20/1,003,317.30 = 403,457.40/x
  3. Step 3: Cross multiply
    668,878.20x = 1,003,317.30 × 403,457.40
  4. Step 4: Simplify right side
    668,878.20x = 404,795,789,233.02
  5. Step 5: Solve for x
    x = 404,795,789,233.02/668,878.20
  6. Step 6: Final answer
    x = 605,186.10

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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.