Home / 676,658.57-1,015,214.45-221,270.81

Finding the Fourth Proportional to 676,658.57, 1,015,214.45 and 221,270.81

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Solution

The fourth proportional to 676,658.57, 1,015,214.45 and 221,270.81 is: 331,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,658.57 : 1,015,214.45 = 221,270.81 : x
  2. Step 2: Convert to fraction form
    676,658.57/1,015,214.45 = 221,270.81/x
  3. Step 3: Cross multiply
    676,658.57x = 1,015,214.45 × 221,270.81
  4. Step 4: Simplify right side
    676,658.57x = 224,637,317,492.78
  5. Step 5: Solve for x
    x = 224,637,317,492.78/676,658.57
  6. Step 6: Final answer
    x = 331,980.31

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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.