Home / 916,660.80-1,374,991.20-904,219.20

Finding the Fourth Proportional to 916,660.80, 1,374,991.20 and 904,219.20

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Solution

The fourth proportional to 916,660.80, 1,374,991.20 and 904,219.20 is: 1,356,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,660.80 : 1,374,991.20 = 904,219.20 : x
  2. Step 2: Convert to fraction form
    916,660.80/1,374,991.20 = 904,219.20/x
  3. Step 3: Cross multiply
    916,660.80x = 1,374,991.20 × 904,219.20
  4. Step 4: Simplify right side
    916,660.80x = 1,243,293,442,871.04
  5. Step 5: Solve for x
    x = 1,243,293,442,871.04/916,660.80
  6. Step 6: Final answer
    x = 1,356,328.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.