Home / 1,079,482.40-1,619,223.60-331,431.20

Finding the Fourth Proportional to 1,079,482.40, 1,619,223.60 and 331,431.20

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Solution

The fourth proportional to 1,079,482.40, 1,619,223.60 and 331,431.20 is: 497,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,482.40 : 1,619,223.60 = 331,431.20 : x
  2. Step 2: Convert to fraction form
    1,079,482.40/1,619,223.60 = 331,431.20/x
  3. Step 3: Cross multiply
    1,079,482.40x = 1,619,223.60 × 331,431.20
  4. Step 4: Simplify right side
    1,079,482.40x = 536,661,220,816.32
  5. Step 5: Solve for x
    x = 536,661,220,816.32/1,079,482.40
  6. Step 6: Final answer
    x = 497,146.80

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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.