Home / 770,462.10-1,155,905.73-321,394.14

Finding the Fourth Proportional to 770,462.10, 1,155,905.73 and 321,394.14

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Solution

The fourth proportional to 770,462.10, 1,155,905.73 and 321,394.14 is: 482,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,462.10 : 1,155,905.73 = 321,394.14 : x
  2. Step 2: Convert to fraction form
    770,462.10/1,155,905.73 = 321,394.14/x
  3. Step 3: Cross multiply
    770,462.10x = 1,155,905.73 × 321,394.14
  4. Step 4: Simplify right side
    770,462.10x = 371,501,328,014.42
  5. Step 5: Solve for x
    x = 371,501,328,014.42/770,462.10
  6. Step 6: Final answer
    x = 482,179.89

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1.5x scale

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.