Home / 1,100,681.64-1,651,186.52-390,650.22

Finding the Fourth Proportional to 1,100,681.64, 1,651,186.52 and 390,650.22

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Solution

The fourth proportional to 1,100,681.64, 1,651,186.52 and 390,650.22 is: 586,033.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,681.64 : 1,651,186.52 = 390,650.22 : x
  2. Step 2: Convert to fraction form
    1,100,681.64/1,651,186.52 = 390,650.22/x
  3. Step 3: Cross multiply
    1,100,681.64x = 1,651,186.52 × 390,650.22
  4. Step 4: Simplify right side
    1,100,681.64x = 645,036,381,537.73
  5. Step 5: Solve for x
    x = 645,036,381,537.73/1,100,681.64
  6. Step 6: Final answer
    x = 586,033.56

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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.