Home / 1,369,601.54-1,890,655.47-818,511.66

Finding the Fourth Proportional to 1,369,601.54, 1,890,655.47 and 818,511.66

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Solution

The fourth proportional to 1,369,601.54, 1,890,655.47 and 818,511.66 is: 1,129,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,601.54 : 1,890,655.47 = 818,511.66 : x
  2. Step 2: Convert to fraction form
    1,369,601.54/1,890,655.47 = 818,511.66/x
  3. Step 3: Cross multiply
    1,369,601.54x = 1,890,655.47 × 818,511.66
  4. Step 4: Simplify right side
    1,369,601.54x = 1,547,523,547,237.78
  5. Step 5: Solve for x
    x = 1,547,523,547,237.78/1,369,601.54
  6. Step 6: Final answer
    x = 1,129,907.86

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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.