Home / 1,424,609.19-1,965,960.45-780,029.28

Finding the Fourth Proportional to 1,424,609.19, 1,965,960.45 and 780,029.28

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Solution

The fourth proportional to 1,424,609.19, 1,965,960.45 and 780,029.28 is: 1,076,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,609.19 : 1,965,960.45 = 780,029.28 : x
  2. Step 2: Convert to fraction form
    1,424,609.19/1,965,960.45 = 780,029.28/x
  3. Step 3: Cross multiply
    1,424,609.19x = 1,965,960.45 × 780,029.28
  4. Step 4: Simplify right side
    1,424,609.19x = 1,533,506,714,321.98
  5. Step 5: Solve for x
    x = 1,533,506,714,321.98/1,424,609.19
  6. Step 6: Final answer
    x = 1,076,440.28

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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.