Home / 1,230,816.48-1,698,374.43-686,982.48

Finding the Fourth Proportional to 1,230,816.48, 1,698,374.43 and 686,982.48

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Solution

The fourth proportional to 1,230,816.48, 1,698,374.43 and 686,982.48 is: 947,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,816.48 : 1,698,374.43 = 686,982.48 : x
  2. Step 2: Convert to fraction form
    1,230,816.48/1,698,374.43 = 686,982.48/x
  3. Step 3: Cross multiply
    1,230,816.48x = 1,698,374.43 × 686,982.48
  4. Step 4: Simplify right side
    1,230,816.48x = 1,166,753,477,889.99
  5. Step 5: Solve for x
    x = 1,166,753,477,889.99/1,230,816.48
  6. Step 6: Final answer
    x = 947,950.81

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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.