Home / 1,270,909.49-1,753,848.77-690,127.46

Finding the Fourth Proportional to 1,270,909.49, 1,753,848.77 and 690,127.46

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Solution

The fourth proportional to 1,270,909.49, 1,753,848.77 and 690,127.46 is: 952,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,909.49 : 1,753,848.77 = 690,127.46 : x
  2. Step 2: Convert to fraction form
    1,270,909.49/1,753,848.77 = 690,127.46/x
  3. Step 3: Cross multiply
    1,270,909.49x = 1,753,848.77 × 690,127.46
  4. Step 4: Simplify right side
    1,270,909.49x = 1,210,379,193,413.59
  5. Step 5: Solve for x
    x = 1,210,379,193,413.59/1,270,909.49
  6. Step 6: Final answer
    x = 952,372.46

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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.