Home / 2,112,329.40-3,168,494.10-692,431.80

Finding the Fourth Proportional to 2,112,329.40, 3,168,494.10 and 692,431.80

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Solution

The fourth proportional to 2,112,329.40, 3,168,494.10 and 692,431.80 is: 1,038,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,329.40 : 3,168,494.10 = 692,431.80 : x
  2. Step 2: Convert to fraction form
    2,112,329.40/3,168,494.10 = 692,431.80/x
  3. Step 3: Cross multiply
    2,112,329.40x = 3,168,494.10 × 692,431.80
  4. Step 4: Simplify right side
    2,112,329.40x = 2,193,966,072,952.38
  5. Step 5: Solve for x
    x = 2,193,966,072,952.38/2,112,329.40
  6. Step 6: Final answer
    x = 1,038,647.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.