Home / 987,890.72-1,482,054.78-314,178.08

Finding the Fourth Proportional to 987,890.72, 1,482,054.78 and 314,178.08

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Solution

The fourth proportional to 987,890.72, 1,482,054.78 and 314,178.08 is: 471,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,890.72 : 1,482,054.78 = 314,178.08 : x
  2. Step 2: Convert to fraction form
    987,890.72/1,482,054.78 = 314,178.08/x
  3. Step 3: Cross multiply
    987,890.72x = 1,482,054.78 × 314,178.08
  4. Step 4: Simplify right side
    987,890.72x = 465,629,125,235.22
  5. Step 5: Solve for x
    x = 465,629,125,235.22/987,890.72
  6. Step 6: Final answer
    x = 471,336.67

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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.