Home / 2,689,658.40-3,711,729.99-1,528,106.69

Finding the Fourth Proportional to 2,689,658.40, 3,711,729.99 and 1,528,106.69

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Solution

The fourth proportional to 2,689,658.40, 3,711,729.99 and 1,528,106.69 is: 2,108,788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,658.40 : 3,711,729.99 = 1,528,106.69 : x
  2. Step 2: Convert to fraction form
    2,689,658.40/3,711,729.99 = 1,528,106.69/x
  3. Step 3: Cross multiply
    2,689,658.40x = 3,711,729.99 × 1,528,106.69
  4. Step 4: Simplify right side
    2,689,658.40x = 5,671,919,429,192.63
  5. Step 5: Solve for x
    x = 5,671,919,429,192.63/2,689,658.40
  6. Step 6: Final answer
    x = 2,108,788.03

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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.