Home / 727,997.51-1,004,639.93-422,254.91

Finding the Fourth Proportional to 727,997.51, 1,004,639.93 and 422,254.91

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Solution

The fourth proportional to 727,997.51, 1,004,639.93 and 422,254.91 is: 582,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,997.51 : 1,004,639.93 = 422,254.91 : x
  2. Step 2: Convert to fraction form
    727,997.51/1,004,639.93 = 422,254.91/x
  3. Step 3: Cross multiply
    727,997.51x = 1,004,639.93 × 422,254.91
  4. Step 4: Simplify right side
    727,997.51x = 424,214,136,090.08
  5. Step 5: Solve for x
    x = 424,214,136,090.08/727,997.51
  6. Step 6: Final answer
    x = 582,713.72

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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.