Home / 1,971,257.31-2,720,319.24-1,144,407.57

Finding the Fourth Proportional to 1,971,257.31, 2,720,319.24 and 1,144,407.57

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Solution

The fourth proportional to 1,971,257.31, 2,720,319.24 and 1,144,407.57 is: 1,579,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,257.31 : 2,720,319.24 = 1,144,407.57 : x
  2. Step 2: Convert to fraction form
    1,971,257.31/2,720,319.24 = 1,144,407.57/x
  3. Step 3: Cross multiply
    1,971,257.31x = 2,720,319.24 × 1,144,407.57
  4. Step 4: Simplify right side
    1,971,257.31x = 3,113,153,931,072.65
  5. Step 5: Solve for x
    x = 3,113,153,931,072.65/1,971,257.31
  6. Step 6: Final answer
    x = 1,579,273.25

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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.