Home / 1,298,905.47-1,792,485.07-725,945.65

Finding the Fourth Proportional to 1,298,905.47, 1,792,485.07 and 725,945.65

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Solution

The fourth proportional to 1,298,905.47, 1,792,485.07 and 725,945.65 is: 1,001,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,905.47 : 1,792,485.07 = 725,945.65 : x
  2. Step 2: Convert to fraction form
    1,298,905.47/1,792,485.07 = 725,945.65/x
  3. Step 3: Cross multiply
    1,298,905.47x = 1,792,485.07 × 725,945.65
  4. Step 4: Simplify right side
    1,298,905.47x = 1,301,246,739,256.45
  5. Step 5: Solve for x
    x = 1,301,246,739,256.45/1,298,905.47
  6. Step 6: Final answer
    x = 1,001,802.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.