Home / 1,200,013.71-1,800,022.20-490,041.69

Finding the Fourth Proportional to 1,200,013.71, 1,800,022.20 and 490,041.69

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Solution

The fourth proportional to 1,200,013.71, 1,800,022.20 and 490,041.69 is: 735,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,013.71 : 1,800,022.20 = 490,041.69 : x
  2. Step 2: Convert to fraction form
    1,200,013.71/1,800,022.20 = 490,041.69/x
  3. Step 3: Cross multiply
    1,200,013.71x = 1,800,022.20 × 490,041.69
  4. Step 4: Simplify right side
    1,200,013.71x = 882,085,920,925.52
  5. Step 5: Solve for x
    x = 882,085,920,925.52/1,200,013.71
  6. Step 6: Final answer
    x = 735,063.20

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1.5x scale

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.