Home / 1,122,056.60-1,687,232.10-939,579.80

Finding the Fourth Proportional to 1,122,056.60, 1,687,232.10 and 939,579.80

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Solution

The fourth proportional to 1,122,056.60, 1,687,232.10 and 939,579.80 is: 1,412,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,056.60 : 1,687,232.10 = 939,579.80 : x
  2. Step 2: Convert to fraction form
    1,122,056.60/1,687,232.10 = 939,579.80/x
  3. Step 3: Cross multiply
    1,122,056.60x = 1,687,232.10 × 939,579.80
  4. Step 4: Simplify right side
    1,122,056.60x = 1,585,289,199,071.58
  5. Step 5: Solve for x
    x = 1,585,289,199,071.58/1,122,056.60
  6. Step 6: Final answer
    x = 1,412,842.45

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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.