Home / 1,167,145.07-1,611,988.76-784,507.55

Finding the Fourth Proportional to 1,167,145.07, 1,611,988.76 and 784,507.55

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Solution

The fourth proportional to 1,167,145.07, 1,611,988.76 and 784,507.55 is: 1,083,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,145.07 : 1,611,988.76 = 784,507.55 : x
  2. Step 2: Convert to fraction form
    1,167,145.07/1,611,988.76 = 784,507.55/x
  3. Step 3: Cross multiply
    1,167,145.07x = 1,611,988.76 × 784,507.55
  4. Step 4: Simplify right side
    1,167,145.07x = 1,264,617,346,636.46
  5. Step 5: Solve for x
    x = 1,264,617,346,636.46/1,167,145.07
  6. Step 6: Final answer
    x = 1,083,513.42

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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.