Home / 1,313,128.40-1,970,470.20-957,246.80

Finding the Fourth Proportional to 1,313,128.40, 1,970,470.20 and 957,246.80

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Solution

The fourth proportional to 1,313,128.40, 1,970,470.20 and 957,246.80 is: 1,436,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,128.40 : 1,970,470.20 = 957,246.80 : x
  2. Step 2: Convert to fraction form
    1,313,128.40/1,970,470.20 = 957,246.80/x
  3. Step 3: Cross multiply
    1,313,128.40x = 1,970,470.20 × 957,246.80
  4. Step 4: Simplify right side
    1,313,128.40x = 1,886,226,293,445.36
  5. Step 5: Solve for x
    x = 1,886,226,293,445.36/1,313,128.40
  6. Step 6: Final answer
    x = 1,436,437.06

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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.