Home / 2,672,513.12-3,688,218.96-1,585,428.32

Finding the Fourth Proportional to 2,672,513.12, 3,688,218.96 and 1,585,428.32

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Solution

The fourth proportional to 2,672,513.12, 3,688,218.96 and 1,585,428.32 is: 2,187,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,513.12 : 3,688,218.96 = 1,585,428.32 : x
  2. Step 2: Convert to fraction form
    2,672,513.12/3,688,218.96 = 1,585,428.32/x
  3. Step 3: Cross multiply
    2,672,513.12x = 3,688,218.96 × 1,585,428.32
  4. Step 4: Simplify right side
    2,672,513.12x = 5,847,406,789,544.95
  5. Step 5: Solve for x
    x = 5,847,406,789,544.95/2,672,513.12
  6. Step 6: Final answer
    x = 2,187,980.57

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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.