Home / 987,231.78-1,480,847.58-239,277.78

Finding the Fourth Proportional to 987,231.78, 1,480,847.58 and 239,277.78

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Solution

The fourth proportional to 987,231.78, 1,480,847.58 and 239,277.78 is: 358,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,231.78 : 1,480,847.58 = 239,277.78 : x
  2. Step 2: Convert to fraction form
    987,231.78/1,480,847.58 = 239,277.78/x
  3. Step 3: Cross multiply
    987,231.78x = 1,480,847.58 × 239,277.78
  4. Step 4: Simplify right side
    987,231.78x = 354,333,921,460.77
  5. Step 5: Solve for x
    x = 354,333,921,460.77/987,231.78
  6. Step 6: Final answer
    x = 358,916.65

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1.5x scale

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.