Home / 1,255,326.32-1,881,413.49-678,926.63

Finding the Fourth Proportional to 1,255,326.32, 1,881,413.49 and 678,926.63

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Solution

The fourth proportional to 1,255,326.32, 1,881,413.49 and 678,926.63 is: 1,017,537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,326.32 : 1,881,413.49 = 678,926.63 : x
  2. Step 2: Convert to fraction form
    1,255,326.32/1,881,413.49 = 678,926.63/x
  3. Step 3: Cross multiply
    1,255,326.32x = 1,881,413.49 × 678,926.63
  4. Step 4: Simplify right side
    1,255,326.32x = 1,277,341,720,402.24
  5. Step 5: Solve for x
    x = 1,277,341,720,402.24/1,255,326.32
  6. Step 6: Final answer
    x = 1,017,537.59

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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.