Home / 1,316,689.63-1,975,102.79-418,201.65

Finding the Fourth Proportional to 1,316,689.63, 1,975,102.79 and 418,201.65

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Solution

The fourth proportional to 1,316,689.63, 1,975,102.79 and 418,201.65 is: 627,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,689.63 : 1,975,102.79 = 418,201.65 : x
  2. Step 2: Convert to fraction form
    1,316,689.63/1,975,102.79 = 418,201.65/x
  3. Step 3: Cross multiply
    1,316,689.63x = 1,975,102.79 × 418,201.65
  4. Step 4: Simplify right side
    1,316,689.63x = 825,991,243,606.60
  5. Step 5: Solve for x
    x = 825,991,243,606.60/1,316,689.63
  6. Step 6: Final answer
    x = 627,324.18

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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.