Home / 987,181.37-1,479,685.25-645,483.89

Finding the Fourth Proportional to 987,181.37, 1,479,685.25 and 645,483.89

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Solution

The fourth proportional to 987,181.37, 1,479,685.25 and 645,483.89 is: 967,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,181.37 : 1,479,685.25 = 645,483.89 : x
  2. Step 2: Convert to fraction form
    987,181.37/1,479,685.25 = 645,483.89/x
  3. Step 3: Cross multiply
    987,181.37x = 1,479,685.25 × 645,483.89
  4. Step 4: Simplify right side
    987,181.37x = 955,112,991,145.62
  5. Step 5: Solve for x
    x = 955,112,991,145.62/987,181.37
  6. Step 6: Final answer
    x = 967,515.21

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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.