Home / 1,161,959.42-1,603,542.89-645,735.07

Finding the Fourth Proportional to 1,161,959.42, 1,603,542.89 and 645,735.07

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Solution

The fourth proportional to 1,161,959.42, 1,603,542.89 and 645,735.07 is: 891,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,959.42 : 1,603,542.89 = 645,735.07 : x
  2. Step 2: Convert to fraction form
    1,161,959.42/1,603,542.89 = 645,735.07/x
  3. Step 3: Cross multiply
    1,161,959.42x = 1,603,542.89 × 645,735.07
  4. Step 4: Simplify right side
    1,161,959.42x = 1,035,463,880,322.15
  5. Step 5: Solve for x
    x = 1,035,463,880,322.15/1,161,959.42
  6. Step 6: Final answer
    x = 891,136.01

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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.