Home / 919,920.30-1,379,880.45-837,251.70

Finding the Fourth Proportional to 919,920.30, 1,379,880.45 and 837,251.70

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Solution

The fourth proportional to 919,920.30, 1,379,880.45 and 837,251.70 is: 1,255,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,920.30 : 1,379,880.45 = 837,251.70 : x
  2. Step 2: Convert to fraction form
    919,920.30/1,379,880.45 = 837,251.70/x
  3. Step 3: Cross multiply
    919,920.30x = 1,379,880.45 × 837,251.70
  4. Step 4: Simplify right side
    919,920.30x = 1,155,307,252,559.26
  5. Step 5: Solve for x
    x = 1,155,307,252,559.26/919,920.30
  6. Step 6: Final answer
    x = 1,255,877.55

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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.