Home / 624,899.80-861,825.18-488,722.60

Finding the Fourth Proportional to 624,899.80, 861,825.18 and 488,722.60

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Solution

The fourth proportional to 624,899.80, 861,825.18 and 488,722.60 is: 674,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,899.80 : 861,825.18 = 488,722.60 : x
  2. Step 2: Convert to fraction form
    624,899.80/861,825.18 = 488,722.60/x
  3. Step 3: Cross multiply
    624,899.80x = 861,825.18 × 488,722.60
  4. Step 4: Simplify right side
    624,899.80x = 421,193,442,715.07
  5. Step 5: Solve for x
    x = 421,193,442,715.07/624,899.80
  6. Step 6: Final answer
    x = 674,017.57

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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.