Home / 1,219,143.87-1,683,232.29-760,442.49

Finding the Fourth Proportional to 1,219,143.87, 1,683,232.29 and 760,442.49

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Solution

The fourth proportional to 1,219,143.87, 1,683,232.29 and 760,442.49 is: 1,049,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,143.87 : 1,683,232.29 = 760,442.49 : x
  2. Step 2: Convert to fraction form
    1,219,143.87/1,683,232.29 = 760,442.49/x
  3. Step 3: Cross multiply
    1,219,143.87x = 1,683,232.29 × 760,442.49
  4. Step 4: Simplify right side
    1,219,143.87x = 1,280,001,353,856.00
  5. Step 5: Solve for x
    x = 1,280,001,353,856.00/1,219,143.87
  6. Step 6: Final answer
    x = 1,049,918.21

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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.