Home / 1,615,978.64-2,230,050-890,838.72

Finding the Fourth Proportional to 1,615,978.64, 2,230,050 and 890,838.72

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Solution

The fourth proportional to 1,615,978.64, 2,230,050 and 890,838.72 is: 1,229,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,978.64 : 2,230,050 = 890,838.72 : x
  2. Step 2: Convert to fraction form
    1,615,978.64/2,230,050 = 890,838.72/x
  3. Step 3: Cross multiply
    1,615,978.64x = 2,230,050 × 890,838.72
  4. Step 4: Simplify right side
    1,615,978.64x = 1,986,614,887,536
  5. Step 5: Solve for x
    x = 1,986,614,887,536/1,615,978.64
  6. Step 6: Final answer
    x = 1,229,357.15

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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.