Home / 1,321,384.05-1,823,637.60-740,705.45

Finding the Fourth Proportional to 1,321,384.05, 1,823,637.60 and 740,705.45

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Solution

The fourth proportional to 1,321,384.05, 1,823,637.60 and 740,705.45 is: 1,022,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,384.05 : 1,823,637.60 = 740,705.45 : x
  2. Step 2: Convert to fraction form
    1,321,384.05/1,823,637.60 = 740,705.45/x
  3. Step 3: Cross multiply
    1,321,384.05x = 1,823,637.60 × 740,705.45
  4. Step 4: Simplify right side
    1,321,384.05x = 1,350,778,300,026.73
  5. Step 5: Solve for x
    x = 1,350,778,300,026.73/1,321,384.05
  6. Step 6: Final answer
    x = 1,022,245.05

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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.