Home / 683,715.48-1,025,670.40-210,440.28

Finding the Fourth Proportional to 683,715.48, 1,025,670.40 and 210,440.28

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Solution

The fourth proportional to 683,715.48, 1,025,670.40 and 210,440.28 is: 315,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,715.48 : 1,025,670.40 = 210,440.28 : x
  2. Step 2: Convert to fraction form
    683,715.48/1,025,670.40 = 210,440.28/x
  3. Step 3: Cross multiply
    683,715.48x = 1,025,670.40 × 210,440.28
  4. Step 4: Simplify right side
    683,715.48x = 215,842,366,163.71
  5. Step 5: Solve for x
    x = 215,842,366,163.71/683,715.48
  6. Step 6: Final answer
    x = 315,690.33

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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.