Home / 1,257,102.50-1,734,768.18-684,130.40

Finding the Fourth Proportional to 1,257,102.50, 1,734,768.18 and 684,130.40

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Solution

The fourth proportional to 1,257,102.50, 1,734,768.18 and 684,130.40 is: 944,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,102.50 : 1,734,768.18 = 684,130.40 : x
  2. Step 2: Convert to fraction form
    1,257,102.50/1,734,768.18 = 684,130.40/x
  3. Step 3: Cross multiply
    1,257,102.50x = 1,734,768.18 × 684,130.40
  4. Step 4: Simplify right side
    1,257,102.50x = 1,186,807,648,890.67
  5. Step 5: Solve for x
    x = 1,186,807,648,890.67/1,257,102.50
  6. Step 6: Final answer
    x = 944,081.85

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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.