Home / 1,308,696.89-1,963,045.47-410,138.51

Finding the Fourth Proportional to 1,308,696.89, 1,963,045.47 and 410,138.51

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Solution

The fourth proportional to 1,308,696.89, 1,963,045.47 and 410,138.51 is: 615,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,696.89 : 1,963,045.47 = 410,138.51 : x
  2. Step 2: Convert to fraction form
    1,308,696.89/1,963,045.47 = 410,138.51/x
  3. Step 3: Cross multiply
    1,308,696.89x = 1,963,045.47 × 410,138.51
  4. Step 4: Simplify right side
    1,308,696.89x = 805,120,544,128.05
  5. Step 5: Solve for x
    x = 805,120,544,128.05/1,308,696.89
  6. Step 6: Final answer
    x = 615,207.81

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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.