Home / 842,938.80-1,264,408.20-766,175.10

Finding the Fourth Proportional to 842,938.80, 1,264,408.20 and 766,175.10

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Solution

The fourth proportional to 842,938.80, 1,264,408.20 and 766,175.10 is: 1,149,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,938.80 : 1,264,408.20 = 766,175.10 : x
  2. Step 2: Convert to fraction form
    842,938.80/1,264,408.20 = 766,175.10/x
  3. Step 3: Cross multiply
    842,938.80x = 1,264,408.20 × 766,175.10
  4. Step 4: Simplify right side
    842,938.80x = 968,758,079,075.82
  5. Step 5: Solve for x
    x = 968,758,079,075.82/842,938.80
  6. Step 6: Final answer
    x = 1,149,262.65

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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.