Home / 1,985,209.20-2,977,813.80-489,301.20

Finding the Fourth Proportional to 1,985,209.20, 2,977,813.80 and 489,301.20

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Solution

The fourth proportional to 1,985,209.20, 2,977,813.80 and 489,301.20 is: 733,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,209.20 : 2,977,813.80 = 489,301.20 : x
  2. Step 2: Convert to fraction form
    1,985,209.20/2,977,813.80 = 489,301.20/x
  3. Step 3: Cross multiply
    1,985,209.20x = 2,977,813.80 × 489,301.20
  4. Step 4: Simplify right side
    1,985,209.20x = 1,457,047,865,716.56
  5. Step 5: Solve for x
    x = 1,457,047,865,716.56/1,985,209.20
  6. Step 6: Final answer
    x = 733,951.80

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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.