Home / 1,259,252.80-1,737,718.20-686,280.64

Finding the Fourth Proportional to 1,259,252.80, 1,737,718.20 and 686,280.64

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Solution

The fourth proportional to 1,259,252.80, 1,737,718.20 and 686,280.64 is: 947,039.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,252.80 : 1,737,718.20 = 686,280.64 : x
  2. Step 2: Convert to fraction form
    1,259,252.80/1,737,718.20 = 686,280.64/x
  3. Step 3: Cross multiply
    1,259,252.80x = 1,737,718.20 × 686,280.64
  4. Step 4: Simplify right side
    1,259,252.80x = 1,192,562,358,435.65
  5. Step 5: Solve for x
    x = 1,192,562,358,435.65/1,259,252.80
  6. Step 6: Final answer
    x = 947,039.67

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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.