Home / 559,941.41-839,911.88-139,217.28

Finding the Fourth Proportional to 559,941.41, 839,911.88 and 139,217.28

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Solution

The fourth proportional to 559,941.41, 839,911.88 and 139,217.28 is: 208,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,941.41 : 839,911.88 = 139,217.28 : x
  2. Step 2: Convert to fraction form
    559,941.41/839,911.88 = 139,217.28/x
  3. Step 3: Cross multiply
    559,941.41x = 839,911.88 × 139,217.28
  4. Step 4: Simplify right side
    559,941.41x = 116,930,249,296.16
  5. Step 5: Solve for x
    x = 116,930,249,296.16/559,941.41
  6. Step 6: Final answer
    x = 208,825.87

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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.