Home / 713,478.08-1,068,791.07-429,012.88

Finding the Fourth Proportional to 713,478.08, 1,068,791.07 and 429,012.88

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Solution

The fourth proportional to 713,478.08, 1,068,791.07 and 429,012.88 is: 642,661.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,478.08 : 1,068,791.07 = 429,012.88 : x
  2. Step 2: Convert to fraction form
    713,478.08/1,068,791.07 = 429,012.88/x
  3. Step 3: Cross multiply
    713,478.08x = 1,068,791.07 × 429,012.88
  4. Step 4: Simplify right side
    713,478.08x = 458,525,135,058.98
  5. Step 5: Solve for x
    x = 458,525,135,058.98/713,478.08
  6. Step 6: Final answer
    x = 642,661.84

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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.