Home / 1,328,446.20-1,992,669.30-879,673.80

Finding the Fourth Proportional to 1,328,446.20, 1,992,669.30 and 879,673.80

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Solution

The fourth proportional to 1,328,446.20, 1,992,669.30 and 879,673.80 is: 1,319,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,446.20 : 1,992,669.30 = 879,673.80 : x
  2. Step 2: Convert to fraction form
    1,328,446.20/1,992,669.30 = 879,673.80/x
  3. Step 3: Cross multiply
    1,328,446.20x = 1,992,669.30 × 879,673.80
  4. Step 4: Simplify right side
    1,328,446.20x = 1,752,898,975,274.34
  5. Step 5: Solve for x
    x = 1,752,898,975,274.34/1,328,446.20
  6. Step 6: Final answer
    x = 1,319,510.70

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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.