Home / 782,035.85-1,078,958.67-437,821.19

Finding the Fourth Proportional to 782,035.85, 1,078,958.67 and 437,821.19

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Solution

The fourth proportional to 782,035.85, 1,078,958.67 and 437,821.19 is: 604,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,035.85 : 1,078,958.67 = 437,821.19 : x
  2. Step 2: Convert to fraction form
    782,035.85/1,078,958.67 = 437,821.19/x
  3. Step 3: Cross multiply
    782,035.85x = 1,078,958.67 × 437,821.19
  4. Step 4: Simplify right side
    782,035.85x = 472,390,963,465.42
  5. Step 5: Solve for x
    x = 472,390,963,465.42/782,035.85
  6. Step 6: Final answer
    x = 604,052.83

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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.