Home / 738,307.20-1,107,979.20-317,884.80

Finding the Fourth Proportional to 738,307.20, 1,107,979.20 and 317,884.80

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Solution

The fourth proportional to 738,307.20, 1,107,979.20 and 317,884.80 is: 477,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,307.20 : 1,107,979.20 = 317,884.80 : x
  2. Step 2: Convert to fraction form
    738,307.20/1,107,979.20 = 317,884.80/x
  3. Step 3: Cross multiply
    738,307.20x = 1,107,979.20 × 317,884.80
  4. Step 4: Simplify right side
    738,307.20x = 352,209,746,396.16
  5. Step 5: Solve for x
    x = 352,209,746,396.16/738,307.20
  6. Step 6: Final answer
    x = 477,050.40

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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.