Home / 1,618,682.30-2,428,023.45-778,874.30

Finding the Fourth Proportional to 1,618,682.30, 2,428,023.45 and 778,874.30

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Solution

The fourth proportional to 1,618,682.30, 2,428,023.45 and 778,874.30 is: 1,168,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,682.30 : 2,428,023.45 = 778,874.30 : x
  2. Step 2: Convert to fraction form
    1,618,682.30/2,428,023.45 = 778,874.30/x
  3. Step 3: Cross multiply
    1,618,682.30x = 2,428,023.45 × 778,874.30
  4. Step 4: Simplify right side
    1,618,682.30x = 1,891,125,065,002.34
  5. Step 5: Solve for x
    x = 1,891,125,065,002.34/1,618,682.30
  6. Step 6: Final answer
    x = 1,168,311.45

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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.