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Finding the Fourth Proportional to 1,303,718.49, 1,799,135.46 and 722,982.51

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Solution

The fourth proportional to 1,303,718.49, 1,799,135.46 and 722,982.51 is: 997,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,718.49 : 1,799,135.46 = 722,982.51 : x
  2. Step 2: Convert to fraction form
    1,303,718.49/1,799,135.46 = 722,982.51/x
  3. Step 3: Cross multiply
    1,303,718.49x = 1,799,135.46 × 722,982.51
  4. Step 4: Simplify right side
    1,303,718.49x = 1,300,743,470,700.80
  5. Step 5: Solve for x
    x = 1,300,743,470,700.80/1,303,718.49
  6. Step 6: Final answer
    x = 997,718.05

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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.