Home / 740,979-1,022,551.98-401,447.22

Finding the Fourth Proportional to 740,979, 1,022,551.98 and 401,447.22

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Solution

The fourth proportional to 740,979, 1,022,551.98 and 401,447.22 is: 553,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,979 : 1,022,551.98 = 401,447.22 : x
  2. Step 2: Convert to fraction form
    740,979/1,022,551.98 = 401,447.22/x
  3. Step 3: Cross multiply
    740,979x = 1,022,551.98 × 401,447.22
  4. Step 4: Simplify right side
    740,979x = 410,500,649,676.50
  5. Step 5: Solve for x
    x = 410,500,649,676.50/740,979
  6. Step 6: Final answer
    x = 553,997.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.