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Finding the Fourth Proportional to 1,298,762.03, 1,792,298.24 and 725,811.77

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Solution

The fourth proportional to 1,298,762.03, 1,792,298.24 and 725,811.77 is: 1,001,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,762.03 : 1,792,298.24 = 725,811.77 : x
  2. Step 2: Convert to fraction form
    1,298,762.03/1,792,298.24 = 725,811.77/x
  3. Step 3: Cross multiply
    1,298,762.03x = 1,792,298.24 × 725,811.77
  4. Step 4: Simplify right side
    1,298,762.03x = 1,300,871,161,515.77
  5. Step 5: Solve for x
    x = 1,300,871,161,515.77/1,298,762.03
  6. Step 6: Final answer
    x = 1,001,623.95

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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.