Home / 855,586.72-1,284,641.70-477,246.65

Finding the Fourth Proportional to 855,586.72, 1,284,641.70 and 477,246.65

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Solution

The fourth proportional to 855,586.72, 1,284,641.70 and 477,246.65 is: 716,573.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,586.72 : 1,284,641.70 = 477,246.65 : x
  2. Step 2: Convert to fraction form
    855,586.72/1,284,641.70 = 477,246.65/x
  3. Step 3: Cross multiply
    855,586.72x = 1,284,641.70 × 477,246.65
  4. Step 4: Simplify right side
    855,586.72x = 613,090,947,775.31
  5. Step 5: Solve for x
    x = 613,090,947,775.31/855,586.72
  6. Step 6: Final answer
    x = 716,573.71

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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.