Home / 738,313.20-1,107,988.20-317,890.80

Finding the Fourth Proportional to 738,313.20, 1,107,988.20 and 317,890.80

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Solution

The fourth proportional to 738,313.20, 1,107,988.20 and 317,890.80 is: 477,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,313.20 : 1,107,988.20 = 317,890.80 : x
  2. Step 2: Convert to fraction form
    738,313.20/1,107,988.20 = 317,890.80/x
  3. Step 3: Cross multiply
    738,313.20x = 1,107,988.20 × 317,890.80
  4. Step 4: Simplify right side
    738,313.20x = 352,219,255,288.56
  5. Step 5: Solve for x
    x = 352,219,255,288.56/738,313.20
  6. Step 6: Final answer
    x = 477,059.40

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Double scale
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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.