Home / 782,023.41-1,078,941.33-437,808.78

Finding the Fourth Proportional to 782,023.41, 1,078,941.33 and 437,808.78

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Solution

The fourth proportional to 782,023.41, 1,078,941.33 and 437,808.78 is: 604,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,023.41 : 1,078,941.33 = 437,808.78 : x
  2. Step 2: Convert to fraction form
    782,023.41/1,078,941.33 = 437,808.78/x
  3. Step 3: Cross multiply
    782,023.41x = 1,078,941.33 × 437,808.78
  4. Step 4: Simplify right side
    782,023.41x = 472,369,987,378.88
  5. Step 5: Solve for x
    x = 472,369,987,378.88/782,023.41
  6. Step 6: Final answer
    x = 604,035.61

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1.5x scale

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.