Home / 1,317,664-1,976,321.28-371,109.12

Finding the Fourth Proportional to 1,317,664, 1,976,321.28 and 371,109.12

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Solution

The fourth proportional to 1,317,664, 1,976,321.28 and 371,109.12 is: 556,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,664 : 1,976,321.28 = 371,109.12 : x
  2. Step 2: Convert to fraction form
    1,317,664/1,976,321.28 = 371,109.12/x
  3. Step 3: Cross multiply
    1,317,664x = 1,976,321.28 × 371,109.12
  4. Step 4: Simplify right side
    1,317,664x = 733,430,851,058.07
  5. Step 5: Solve for x
    x = 733,430,851,058.07/1,317,664
  6. Step 6: Final answer
    x = 556,614.47

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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.