Home / 1,259,986.20-1,889,487.90-549,529.80

Finding the Fourth Proportional to 1,259,986.20, 1,889,487.90 and 549,529.80

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Solution

The fourth proportional to 1,259,986.20, 1,889,487.90 and 549,529.80 is: 824,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,986.20 : 1,889,487.90 = 549,529.80 : x
  2. Step 2: Convert to fraction form
    1,259,986.20/1,889,487.90 = 549,529.80/x
  3. Step 3: Cross multiply
    1,259,986.20x = 1,889,487.90 × 549,529.80
  4. Step 4: Simplify right side
    1,259,986.20x = 1,038,329,907,789.42
  5. Step 5: Solve for x
    x = 1,038,329,907,789.42/1,259,986.20
  6. Step 6: Final answer
    x = 824,080.38

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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.