Home / 1,107,748.80-1,661,598.90-309,007.80

Finding the Fourth Proportional to 1,107,748.80, 1,661,598.90 and 309,007.80

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Solution

The fourth proportional to 1,107,748.80, 1,661,598.90 and 309,007.80 is: 463,504.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,748.80 : 1,661,598.90 = 309,007.80 : x
  2. Step 2: Convert to fraction form
    1,107,748.80/1,661,598.90 = 309,007.80/x
  3. Step 3: Cross multiply
    1,107,748.80x = 1,661,598.90 × 309,007.80
  4. Step 4: Simplify right side
    1,107,748.80x = 513,447,020,571.42
  5. Step 5: Solve for x
    x = 513,447,020,571.42/1,107,748.80
  6. Step 6: Final answer
    x = 463,504.92

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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.