Home / 1,615,365-2,229,218.64-890,238.72

Finding the Fourth Proportional to 1,615,365, 2,229,218.64 and 890,238.72

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Solution

The fourth proportional to 1,615,365, 2,229,218.64 and 890,238.72 is: 1,228,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,365 : 2,229,218.64 = 890,238.72 : x
  2. Step 2: Convert to fraction form
    1,615,365/2,229,218.64 = 890,238.72/x
  3. Step 3: Cross multiply
    1,615,365x = 2,229,218.64 × 890,238.72
  4. Step 4: Simplify right side
    1,615,365x = 1,984,536,748,673.74
  5. Step 5: Solve for x
    x = 1,984,536,748,673.74/1,615,365
  6. Step 6: Final answer
    x = 1,228,537.67

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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.