Home / 1,371,988.71-2,048,195.10-1,280,813.16

Finding the Fourth Proportional to 1,371,988.71, 2,048,195.10 and 1,280,813.16

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Solution

The fourth proportional to 1,371,988.71, 2,048,195.10 and 1,280,813.16 is: 1,912,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,988.71 : 2,048,195.10 = 1,280,813.16 : x
  2. Step 2: Convert to fraction form
    1,371,988.71/2,048,195.10 = 1,280,813.16/x
  3. Step 3: Cross multiply
    1,371,988.71x = 2,048,195.10 × 1,280,813.16
  4. Step 4: Simplify right side
    1,371,988.71x = 2,623,355,221,682.47
  5. Step 5: Solve for x
    x = 2,623,355,221,682.47/1,371,988.71
  6. Step 6: Final answer
    x = 1,912,082.22

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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.