Home / 738,281.20-1,107,940.20-317,858.80

Finding the Fourth Proportional to 738,281.20, 1,107,940.20 and 317,858.80

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Solution

The fourth proportional to 738,281.20, 1,107,940.20 and 317,858.80 is: 477,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,281.20 : 1,107,940.20 = 317,858.80 : x
  2. Step 2: Convert to fraction form
    738,281.20/1,107,940.20 = 317,858.80/x
  3. Step 3: Cross multiply
    738,281.20x = 1,107,940.20 × 317,858.80
  4. Step 4: Simplify right side
    738,281.20x = 352,168,542,443.76
  5. Step 5: Solve for x
    x = 352,168,542,443.76/738,281.20
  6. Step 6: Final answer
    x = 477,011.39

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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.