Home / 1,270,143.09-1,912,817.95-1,156,769.01

Finding the Fourth Proportional to 1,270,143.09, 1,912,817.95 and 1,156,769.01

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Solution

The fourth proportional to 1,270,143.09, 1,912,817.95 and 1,156,769.01 is: 1,742,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,143.09 : 1,912,817.95 = 1,156,769.01 : x
  2. Step 2: Convert to fraction form
    1,270,143.09/1,912,817.95 = 1,156,769.01/x
  3. Step 3: Cross multiply
    1,270,143.09x = 1,912,817.95 × 1,156,769.01
  4. Step 4: Simplify right side
    1,270,143.09x = 2,212,688,523,439.81
  5. Step 5: Solve for x
    x = 2,212,688,523,439.81/1,270,143.09
  6. Step 6: Final answer
    x = 1,742,078.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.