Home / 1,124,322-1,683,780.67-643,090.88

Finding the Fourth Proportional to 1,124,322, 1,683,780.67 and 643,090.88

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Solution

The fourth proportional to 1,124,322, 1,683,780.67 and 643,090.88 is: 963,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,322 : 1,683,780.67 = 643,090.88 : x
  2. Step 2: Convert to fraction form
    1,124,322/1,683,780.67 = 643,090.88/x
  3. Step 3: Cross multiply
    1,124,322x = 1,683,780.67 × 643,090.88
  4. Step 4: Simplify right side
    1,124,322x = 1,082,823,992,797.29
  5. Step 5: Solve for x
    x = 1,082,823,992,797.29/1,124,322
  6. Step 6: Final answer
    x = 963,090.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.