Home / 1,319,791.89-1,980,436.67-712,572.06

Finding the Fourth Proportional to 1,319,791.89, 1,980,436.67 and 712,572.06

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Solution

The fourth proportional to 1,319,791.89, 1,980,436.67 and 712,572.06 is: 1,069,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,791.89 : 1,980,436.67 = 712,572.06 : x
  2. Step 2: Convert to fraction form
    1,319,791.89/1,980,436.67 = 712,572.06/x
  3. Step 3: Cross multiply
    1,319,791.89x = 1,980,436.67 × 712,572.06
  4. Step 4: Simplify right side
    1,319,791.89x = 1,411,203,834,078.58
  5. Step 5: Solve for x
    x = 1,411,203,834,078.58/1,319,791.89
  6. Step 6: Final answer
    x = 1,069,262.39

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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.