Home / 1,257,803.84-1,735,800.40-684,875.36

Finding the Fourth Proportional to 1,257,803.84, 1,735,800.40 and 684,875.36

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Solution

The fourth proportional to 1,257,803.84, 1,735,800.40 and 684,875.36 is: 945,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,803.84 : 1,735,800.40 = 684,875.36 : x
  2. Step 2: Convert to fraction form
    1,257,803.84/1,735,800.40 = 684,875.36/x
  3. Step 3: Cross multiply
    1,257,803.84x = 1,735,800.40 × 684,875.36
  4. Step 4: Simplify right side
    1,257,803.84x = 1,188,806,923,838.14
  5. Step 5: Solve for x
    x = 1,188,806,923,838.14/1,257,803.84
  6. Step 6: Final answer
    x = 945,144.93

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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.