Home / 1,243,405.24-1,716,607.02-820,698.04

Finding the Fourth Proportional to 1,243,405.24, 1,716,607.02 and 820,698.04

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Solution

The fourth proportional to 1,243,405.24, 1,716,607.02 and 820,698.04 is: 1,133,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,405.24 : 1,716,607.02 = 820,698.04 : x
  2. Step 2: Convert to fraction form
    1,243,405.24/1,716,607.02 = 820,698.04/x
  3. Step 3: Cross multiply
    1,243,405.24x = 1,716,607.02 × 820,698.04
  4. Step 4: Simplify right side
    1,243,405.24x = 1,408,816,016,764.24
  5. Step 5: Solve for x
    x = 1,408,816,016,764.24/1,243,405.24
  6. Step 6: Final answer
    x = 1,133,030.46

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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.