Home / 767,876.83-1,151,323.16-318,907.60

Finding the Fourth Proportional to 767,876.83, 1,151,323.16 and 318,907.60

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Solution

The fourth proportional to 767,876.83, 1,151,323.16 and 318,907.60 is: 478,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,876.83 : 1,151,323.16 = 318,907.60 : x
  2. Step 2: Convert to fraction form
    767,876.83/1,151,323.16 = 318,907.60/x
  3. Step 3: Cross multiply
    767,876.83x = 1,151,323.16 × 318,907.60
  4. Step 4: Simplify right side
    767,876.83x = 367,165,701,307.17
  5. Step 5: Solve for x
    x = 367,165,701,307.17/767,876.83
  6. Step 6: Final answer
    x = 478,157.03

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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.