Home / 1,289,307.06-1,930,810.50-1,112,947.38

Finding the Fourth Proportional to 1,289,307.06, 1,930,810.50 and 1,112,947.38

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Solution

The fourth proportional to 1,289,307.06, 1,930,810.50 and 1,112,947.38 is: 1,666,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,307.06 : 1,930,810.50 = 1,112,947.38 : x
  2. Step 2: Convert to fraction form
    1,289,307.06/1,930,810.50 = 1,112,947.38/x
  3. Step 3: Cross multiply
    1,289,307.06x = 1,930,810.50 × 1,112,947.38
  4. Step 4: Simplify right side
    1,289,307.06x = 2,148,890,487,251.49
  5. Step 5: Solve for x
    x = 2,148,890,487,251.49/1,289,307.06
  6. Step 6: Final answer
    x = 1,666,701.87

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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.