Home / 1,298,867.21-1,792,439.34-725,907.36

Finding the Fourth Proportional to 1,298,867.21, 1,792,439.34 and 725,907.36

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Solution

The fourth proportional to 1,298,867.21, 1,792,439.34 and 725,907.36 is: 1,001,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,867.21 : 1,792,439.34 = 725,907.36 : x
  2. Step 2: Convert to fraction form
    1,298,867.21/1,792,439.34 = 725,907.36/x
  3. Step 3: Cross multiply
    1,298,867.21x = 1,792,439.34 × 725,907.36
  4. Step 4: Simplify right side
    1,298,867.21x = 1,301,144,909,259.54
  5. Step 5: Solve for x
    x = 1,301,144,909,259.54/1,298,867.21
  6. Step 6: Final answer
    x = 1,001,753.60

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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.