Home / 1,643,559.49-2,268,068.57-918,413.17

Finding the Fourth Proportional to 1,643,559.49, 2,268,068.57 and 918,413.17

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Solution

The fourth proportional to 1,643,559.49, 2,268,068.57 and 918,413.17 is: 1,267,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,559.49 : 2,268,068.57 = 918,413.17 : x
  2. Step 2: Convert to fraction form
    1,643,559.49/2,268,068.57 = 918,413.17/x
  3. Step 3: Cross multiply
    1,643,559.49x = 2,268,068.57 × 918,413.17
  4. Step 4: Simplify right side
    1,643,559.49x = 2,083,024,034,888.83
  5. Step 5: Solve for x
    x = 2,083,024,034,888.83/1,643,559.49
  6. Step 6: Final answer
    x = 1,267,385.85

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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.