Home / 890,669.60-1,339,114.80-872,007.20

Finding the Fourth Proportional to 890,669.60, 1,339,114.80 and 872,007.20

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Solution

The fourth proportional to 890,669.60, 1,339,114.80 and 872,007.20 is: 1,311,056.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,669.60 : 1,339,114.80 = 872,007.20 : x
  2. Step 2: Convert to fraction form
    890,669.60/1,339,114.80 = 872,007.20/x
  3. Step 3: Cross multiply
    890,669.60x = 1,339,114.80 × 872,007.20
  4. Step 4: Simplify right side
    890,669.60x = 1,167,717,747,226.56
  5. Step 5: Solve for x
    x = 1,167,717,747,226.56/890,669.60
  6. Step 6: Final answer
    x = 1,311,056.03

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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.