Home / 1,937,421.20-2,904,819.60-990,012.80

Finding the Fourth Proportional to 1,937,421.20, 2,904,819.60 and 990,012.80

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Solution

The fourth proportional to 1,937,421.20, 2,904,819.60 and 990,012.80 is: 1,484,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937,421.20 : 2,904,819.60 = 990,012.80 : x
  2. Step 2: Convert to fraction form
    1,937,421.20/2,904,819.60 = 990,012.80/x
  3. Step 3: Cross multiply
    1,937,421.20x = 2,904,819.60 × 990,012.80
  4. Step 4: Simplify right side
    1,937,421.20x = 2,875,808,585,690.88
  5. Step 5: Solve for x
    x = 2,875,808,585,690.88/1,937,421.20
  6. Step 6: Final answer
    x = 1,484,348.67

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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.