Home / 1,280,192.95-1,919,844.73-712,440.46

Finding the Fourth Proportional to 1,280,192.95, 1,919,844.73 and 712,440.46

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Solution

The fourth proportional to 1,280,192.95, 1,919,844.73 and 712,440.46 is: 1,068,413.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,192.95 : 1,919,844.73 = 712,440.46 : x
  2. Step 2: Convert to fraction form
    1,280,192.95/1,919,844.73 = 712,440.46/x
  3. Step 3: Cross multiply
    1,280,192.95x = 1,919,844.73 × 712,440.46
  4. Step 4: Simplify right side
    1,280,192.95x = 1,367,775,062,569.78
  5. Step 5: Solve for x
    x = 1,367,775,062,569.78/1,280,192.95
  6. Step 6: Final answer
    x = 1,068,413.21

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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.