Home / 1,298,865.40-1,792,436.85-725,905.55

Finding the Fourth Proportional to 1,298,865.40, 1,792,436.85 and 725,905.55

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Solution

The fourth proportional to 1,298,865.40, 1,792,436.85 and 725,905.55 is: 1,001,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,865.40 : 1,792,436.85 = 725,905.55 : x
  2. Step 2: Convert to fraction form
    1,298,865.40/1,792,436.85 = 725,905.55/x
  3. Step 3: Cross multiply
    1,298,865.40x = 1,792,436.85 × 725,905.55
  4. Step 4: Simplify right side
    1,298,865.40x = 1,301,139,853,809.99
  5. Step 5: Solve for x
    x = 1,301,139,853,809.99/1,298,865.40
  6. Step 6: Final answer
    x = 1,001,751.11

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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.