Home / 1,429,288.44-1,972,271.34-856,313.88

Finding the Fourth Proportional to 1,429,288.44, 1,972,271.34 and 856,313.88

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Solution

The fourth proportional to 1,429,288.44, 1,972,271.34 and 856,313.88 is: 1,181,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,288.44 : 1,972,271.34 = 856,313.88 : x
  2. Step 2: Convert to fraction form
    1,429,288.44/1,972,271.34 = 856,313.88/x
  3. Step 3: Cross multiply
    1,429,288.44x = 1,972,271.34 × 856,313.88
  4. Step 4: Simplify right side
    1,429,288.44x = 1,688,883,323,568.20
  5. Step 5: Solve for x
    x = 1,688,883,323,568.20/1,429,288.44
  6. Step 6: Final answer
    x = 1,181,625.26

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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.