Home / 646,009.78-968,301.08-266,721.41

Finding the Fourth Proportional to 646,009.78, 968,301.08 and 266,721.41

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Solution

The fourth proportional to 646,009.78, 968,301.08 and 266,721.41 is: 399,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,009.78 : 968,301.08 = 266,721.41 : x
  2. Step 2: Convert to fraction form
    646,009.78/968,301.08 = 266,721.41/x
  3. Step 3: Cross multiply
    646,009.78x = 968,301.08 × 266,721.41
  4. Step 4: Simplify right side
    646,009.78x = 258,266,627,503.09
  5. Step 5: Solve for x
    x = 258,266,627,503.09/646,009.78
  6. Step 6: Final answer
    x = 399,787.49

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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.