Home / 831,579.89-1,147,578.08-464,053.16

Finding the Fourth Proportional to 831,579.89, 1,147,578.08 and 464,053.16

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Solution

The fourth proportional to 831,579.89, 1,147,578.08 and 464,053.16 is: 640,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,579.89 : 1,147,578.08 = 464,053.16 : x
  2. Step 2: Convert to fraction form
    831,579.89/1,147,578.08 = 464,053.16/x
  3. Step 3: Cross multiply
    831,579.89x = 1,147,578.08 × 464,053.16
  4. Step 4: Simplify right side
    831,579.89x = 532,537,238,399.81
  5. Step 5: Solve for x
    x = 532,537,238,399.81/831,579.89
  6. Step 6: Final answer
    x = 640,392.16

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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.