Home / 3,083,790.78-4,255,681.68-1,688,329.14

Finding the Fourth Proportional to 3,083,790.78, 4,255,681.68 and 1,688,329.14

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Solution

The fourth proportional to 3,083,790.78, 4,255,681.68 and 1,688,329.14 is: 2,329,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083,790.78 : 4,255,681.68 = 1,688,329.14 : x
  2. Step 2: Convert to fraction form
    3,083,790.78/4,255,681.68 = 1,688,329.14/x
  3. Step 3: Cross multiply
    3,083,790.78x = 4,255,681.68 × 1,688,329.14
  4. Step 4: Simplify right side
    3,083,790.78x = 7,184,991,390,908.15
  5. Step 5: Solve for x
    x = 7,184,991,390,908.15/3,083,790.78
  6. Step 6: Final answer
    x = 2,329,921.81

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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.