Home / 1,615,812.90-2,229,921.56-890,658.98

Finding the Fourth Proportional to 1,615,812.90, 2,229,921.56 and 890,658.98

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Solution

The fourth proportional to 1,615,812.90, 2,229,921.56 and 890,658.98 is: 1,229,164.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,812.90 : 2,229,921.56 = 890,658.98 : x
  2. Step 2: Convert to fraction form
    1,615,812.90/2,229,921.56 = 890,658.98/x
  3. Step 3: Cross multiply
    1,615,812.90x = 2,229,921.56 × 890,658.98
  4. Step 4: Simplify right side
    1,615,812.90x = 1,986,099,662,109.61
  5. Step 5: Solve for x
    x = 1,986,099,662,109.61/1,615,812.90
  6. Step 6: Final answer
    x = 1,229,164.38

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1.5x scale

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.