Home / 1,106,368.80-1,655,616.60-767,821.20

Finding the Fourth Proportional to 1,106,368.80, 1,655,616.60 and 767,821.20

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Solution

The fourth proportional to 1,106,368.80, 1,655,616.60 and 767,821.20 is: 1,148,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,368.80 : 1,655,616.60 = 767,821.20 : x
  2. Step 2: Convert to fraction form
    1,106,368.80/1,655,616.60 = 767,821.20/x
  3. Step 3: Cross multiply
    1,106,368.80x = 1,655,616.60 × 767,821.20
  4. Step 4: Simplify right side
    1,106,368.80x = 1,271,217,524,551.92
  5. Step 5: Solve for x
    x = 1,271,217,524,551.92/1,106,368.80
  6. Step 6: Final answer
    x = 1,148,999.80

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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.