Home / 1,167,142.39-1,611,985.10-784,504.87

Finding the Fourth Proportional to 1,167,142.39, 1,611,985.10 and 784,504.87

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Solution

The fourth proportional to 1,167,142.39, 1,611,985.10 and 784,504.87 is: 1,083,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,142.39 : 1,611,985.10 = 784,504.87 : x
  2. Step 2: Convert to fraction form
    1,167,142.39/1,611,985.10 = 784,504.87/x
  3. Step 3: Cross multiply
    1,167,142.39x = 1,611,985.10 × 784,504.87
  4. Step 4: Simplify right side
    1,167,142.39x = 1,264,610,161,317.44
  5. Step 5: Solve for x
    x = 1,264,610,161,317.44/1,167,142.39
  6. Step 6: Final answer
    x = 1,083,509.75

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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.