Home / 928,856.70-1,391,211.45-717,810.30

Finding the Fourth Proportional to 928,856.70, 1,391,211.45 and 717,810.30

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Solution

The fourth proportional to 928,856.70, 1,391,211.45 and 717,810.30 is: 1,075,112.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,856.70 : 1,391,211.45 = 717,810.30 : x
  2. Step 2: Convert to fraction form
    928,856.70/1,391,211.45 = 717,810.30/x
  3. Step 3: Cross multiply
    928,856.70x = 1,391,211.45 × 717,810.30
  4. Step 4: Simplify right side
    928,856.70x = 998,625,908,287.94
  5. Step 5: Solve for x
    x = 998,625,908,287.94/928,856.70
  6. Step 6: Final answer
    x = 1,075,112.99

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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.