Home / 879,211.60-1,318,803.09-280,164.67

Finding the Fourth Proportional to 879,211.60, 1,318,803.09 and 280,164.67

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Solution

The fourth proportional to 879,211.60, 1,318,803.09 and 280,164.67 is: 420,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,211.60 : 1,318,803.09 = 280,164.67 : x
  2. Step 2: Convert to fraction form
    879,211.60/1,318,803.09 = 280,164.67/x
  3. Step 3: Cross multiply
    879,211.60x = 1,318,803.09 × 280,164.67
  4. Step 4: Simplify right side
    879,211.60x = 369,482,032,504.83
  5. Step 5: Solve for x
    x = 369,482,032,504.83/879,211.60
  6. Step 6: Final answer
    x = 420,242.45

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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.