Home / 723,625.68-998,664.75-401,439.57

Finding the Fourth Proportional to 723,625.68, 998,664.75 and 401,439.57

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Solution

The fourth proportional to 723,625.68, 998,664.75 and 401,439.57 is: 554,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,625.68 : 998,664.75 = 401,439.57 : x
  2. Step 2: Convert to fraction form
    723,625.68/998,664.75 = 401,439.57/x
  3. Step 3: Cross multiply
    723,625.68x = 998,664.75 × 401,439.57
  4. Step 4: Simplify right side
    723,625.68x = 400,903,547,814.16
  5. Step 5: Solve for x
    x = 400,903,547,814.16/723,625.68
  6. Step 6: Final answer
    x = 554,020.62

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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.