Home / 1,298,723.28-1,792,240.55-725,763.45

Finding the Fourth Proportional to 1,298,723.28, 1,792,240.55 and 725,763.45

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Solution

The fourth proportional to 1,298,723.28, 1,792,240.55 and 725,763.45 is: 1,001,554.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,723.28 : 1,792,240.55 = 725,763.45 : x
  2. Step 2: Convert to fraction form
    1,298,723.28/1,792,240.55 = 725,763.45/x
  3. Step 3: Cross multiply
    1,298,723.28x = 1,792,240.55 × 725,763.45
  4. Step 4: Simplify right side
    1,298,723.28x = 1,300,742,684,797.90
  5. Step 5: Solve for x
    x = 1,300,742,684,797.90/1,298,723.28
  6. Step 6: Final answer
    x = 1,001,554.92

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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.