Home / 855,580.47-1,284,632.33-477,240.41

Finding the Fourth Proportional to 855,580.47, 1,284,632.33 and 477,240.41

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Solution

The fourth proportional to 855,580.47, 1,284,632.33 and 477,240.41 is: 716,564.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,580.47 : 1,284,632.33 = 477,240.41 : x
  2. Step 2: Convert to fraction form
    855,580.47/1,284,632.33 = 477,240.41/x
  3. Step 3: Cross multiply
    855,580.47x = 1,284,632.33 × 477,240.41
  4. Step 4: Simplify right side
    855,580.47x = 613,078,453,445.29
  5. Step 5: Solve for x
    x = 613,078,453,445.29/855,580.47
  6. Step 6: Final answer
    x = 716,564.34

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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.