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Finding the Fourth Proportional to 973,936.80, 1,458,280.80 and 763,984.80

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Solution

The fourth proportional to 973,936.80, 1,458,280.80 and 763,984.80 is: 1,143,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    973,936.80 : 1,458,280.80 = 763,984.80 : x
  2. Step 2: Convert to fraction form
    973,936.80/1,458,280.80 = 763,984.80/x
  3. Step 3: Cross multiply
    973,936.80x = 1,458,280.80 × 763,984.80
  4. Step 4: Simplify right side
    973,936.80x = 1,114,104,365,331.84
  5. Step 5: Solve for x
    x = 1,114,104,365,331.84/973,936.80
  6. Step 6: Final answer
    x = 1,143,918.54

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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.