Home / 799,688.51-1,199,742.80-287,405.35

Finding the Fourth Proportional to 799,688.51, 1,199,742.80 and 287,405.35

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Solution

The fourth proportional to 799,688.51, 1,199,742.80 and 287,405.35 is: 431,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,688.51 : 1,199,742.80 = 287,405.35 : x
  2. Step 2: Convert to fraction form
    799,688.51/1,199,742.80 = 287,405.35/x
  3. Step 3: Cross multiply
    799,688.51x = 1,199,742.80 × 287,405.35
  4. Step 4: Simplify right side
    799,688.51x = 344,812,499,851.54
  5. Step 5: Solve for x
    x = 344,812,499,851.54/799,688.51
  6. Step 6: Final answer
    x = 431,183.51

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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.