Home / 1,303,381.42-1,798,153.20-813,065.60

Finding the Fourth Proportional to 1,303,381.42, 1,798,153.20 and 813,065.60

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Solution

The fourth proportional to 1,303,381.42, 1,798,153.20 and 813,065.60 is: 1,121,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,381.42 : 1,798,153.20 = 813,065.60 : x
  2. Step 2: Convert to fraction form
    1,303,381.42/1,798,153.20 = 813,065.60/x
  3. Step 3: Cross multiply
    1,303,381.42x = 1,798,153.20 × 813,065.60
  4. Step 4: Simplify right side
    1,303,381.42x = 1,462,016,510,449.92
  5. Step 5: Solve for x
    x = 1,462,016,510,449.92/1,303,381.42
  6. Step 6: Final answer
    x = 1,121,710.41

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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.