Home / 1,371,989.46-2,048,196.21-1,280,813.91

Finding the Fourth Proportional to 1,371,989.46, 2,048,196.21 and 1,280,813.91

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Solution

The fourth proportional to 1,371,989.46, 2,048,196.21 and 1,280,813.91 is: 1,912,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,989.46 : 2,048,196.21 = 1,280,813.91 : x
  2. Step 2: Convert to fraction form
    1,371,989.46/2,048,196.21 = 1,280,813.91/x
  3. Step 3: Cross multiply
    1,371,989.46x = 2,048,196.21 × 1,280,813.91
  4. Step 4: Simplify right side
    1,371,989.46x = 2,623,358,196,177.28
  5. Step 5: Solve for x
    x = 2,623,358,196,177.28/1,371,989.46
  6. Step 6: Final answer
    x = 1,912,083.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.