Home / 1,618,658.40-2,429,955.90-819,528.60

Finding the Fourth Proportional to 1,618,658.40, 2,429,955.90 and 819,528.60

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Solution

The fourth proportional to 1,618,658.40, 2,429,955.90 and 819,528.60 is: 1,230,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,658.40 : 2,429,955.90 = 819,528.60 : x
  2. Step 2: Convert to fraction form
    1,618,658.40/2,429,955.90 = 819,528.60/x
  3. Step 3: Cross multiply
    1,618,658.40x = 2,429,955.90 × 819,528.60
  4. Step 4: Simplify right side
    1,618,658.40x = 1,991,418,356,788.74
  5. Step 5: Solve for x
    x = 1,991,418,356,788.74/1,618,658.40
  6. Step 6: Final answer
    x = 1,230,289.45

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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.