Home / 820,745.36-1,130,102.28-699,614.96

Finding the Fourth Proportional to 820,745.36, 1,130,102.28 and 699,614.96

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Solution

The fourth proportional to 820,745.36, 1,130,102.28 and 699,614.96 is: 963,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,745.36 : 1,130,102.28 = 699,614.96 : x
  2. Step 2: Convert to fraction form
    820,745.36/1,130,102.28 = 699,614.96/x
  3. Step 3: Cross multiply
    820,745.36x = 1,130,102.28 × 699,614.96
  4. Step 4: Simplify right side
    820,745.36x = 790,636,461,418.11
  5. Step 5: Solve for x
    x = 790,636,461,418.11/820,745.36
  6. Step 6: Final answer
    x = 963,315.18

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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.