Home / 1,415,222.40-2,119,723.20-853,276.80

Finding the Fourth Proportional to 1,415,222.40, 2,119,723.20 and 853,276.80

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Solution

The fourth proportional to 1,415,222.40, 2,119,723.20 and 853,276.80 is: 1,278,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,222.40 : 2,119,723.20 = 853,276.80 : x
  2. Step 2: Convert to fraction form
    1,415,222.40/2,119,723.20 = 853,276.80/x
  3. Step 3: Cross multiply
    1,415,222.40x = 2,119,723.20 × 853,276.80
  4. Step 4: Simplify right side
    1,415,222.40x = 1,808,710,628,981.76
  5. Step 5: Solve for x
    x = 1,808,710,628,981.76/1,415,222.40
  6. Step 6: Final answer
    x = 1,278,039.85

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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.