Home / 1,076,063.20-1,485,128.67-817,514.70

Finding the Fourth Proportional to 1,076,063.20, 1,485,128.67 and 817,514.70

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Solution

The fourth proportional to 1,076,063.20, 1,485,128.67 and 817,514.70 is: 1,128,292.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,063.20 : 1,485,128.67 = 817,514.70 : x
  2. Step 2: Convert to fraction form
    1,076,063.20/1,485,128.67 = 817,514.70/x
  3. Step 3: Cross multiply
    1,076,063.20x = 1,485,128.67 × 817,514.70
  4. Step 4: Simplify right side
    1,076,063.20x = 1,214,114,519,116.45
  5. Step 5: Solve for x
    x = 1,214,114,519,116.45/1,076,063.20
  6. Step 6: Final answer
    x = 1,128,292.95

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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.