Home / 777,402.54-1,072,852.04-455,216.43

Finding the Fourth Proportional to 777,402.54, 1,072,852.04 and 455,216.43

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Solution

The fourth proportional to 777,402.54, 1,072,852.04 and 455,216.43 is: 628,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,402.54 : 1,072,852.04 = 455,216.43 : x
  2. Step 2: Convert to fraction form
    777,402.54/1,072,852.04 = 455,216.43/x
  3. Step 3: Cross multiply
    777,402.54x = 1,072,852.04 × 455,216.43
  4. Step 4: Simplify right side
    777,402.54x = 488,379,875,567.02
  5. Step 5: Solve for x
    x = 488,379,875,567.02/777,402.54
  6. Step 6: Final answer
    x = 628,220.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.