Home / 783,419.60-1,175,518.20-446,718.80

Finding the Fourth Proportional to 783,419.60, 1,175,518.20 and 446,718.80

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Solution

The fourth proportional to 783,419.60, 1,175,518.20 and 446,718.80 is: 670,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,419.60 : 1,175,518.20 = 446,718.80 : x
  2. Step 2: Convert to fraction form
    783,419.60/1,175,518.20 = 446,718.80/x
  3. Step 3: Cross multiply
    783,419.60x = 1,175,518.20 × 446,718.80
  4. Step 4: Simplify right side
    783,419.60x = 525,126,079,682.16
  5. Step 5: Solve for x
    x = 525,126,079,682.16/783,419.60
  6. Step 6: Final answer
    x = 670,299.90

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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.