Home / 1,257,106.50-1,734,773.70-684,134.40

Finding the Fourth Proportional to 1,257,106.50, 1,734,773.70 and 684,134.40

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Solution

The fourth proportional to 1,257,106.50, 1,734,773.70 and 684,134.40 is: 944,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,106.50 : 1,734,773.70 = 684,134.40 : x
  2. Step 2: Convert to fraction form
    1,257,106.50/1,734,773.70 = 684,134.40/x
  3. Step 3: Cross multiply
    1,257,106.50x = 1,734,773.70 × 684,134.40
  4. Step 4: Simplify right side
    1,257,106.50x = 1,186,818,364,385.28
  5. Step 5: Solve for x
    x = 1,186,818,364,385.28/1,257,106.50
  6. Step 6: Final answer
    x = 944,087.37

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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.