Home / 1,442,528.41-1,990,205.74-830,668.03

Finding the Fourth Proportional to 1,442,528.41, 1,990,205.74 and 830,668.03

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Solution

The fourth proportional to 1,442,528.41, 1,990,205.74 and 830,668.03 is: 1,146,043.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,528.41 : 1,990,205.74 = 830,668.03 : x
  2. Step 2: Convert to fraction form
    1,442,528.41/1,990,205.74 = 830,668.03/x
  3. Step 3: Cross multiply
    1,442,528.41x = 1,990,205.74 × 830,668.03
  4. Step 4: Simplify right side
    1,442,528.41x = 1,653,200,281,340.49
  5. Step 5: Solve for x
    x = 1,653,200,281,340.49/1,442,528.41
  6. Step 6: Final answer
    x = 1,146,043.48

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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.