Home / 1,519,409.10-2,278,785.60-666,479.10

Finding the Fourth Proportional to 1,519,409.10, 2,278,785.60 and 666,479.10

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Solution

The fourth proportional to 1,519,409.10, 2,278,785.60 and 666,479.10 is: 999,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,409.10 : 2,278,785.60 = 666,479.10 : x
  2. Step 2: Convert to fraction form
    1,519,409.10/2,278,785.60 = 666,479.10/x
  3. Step 3: Cross multiply
    1,519,409.10x = 2,278,785.60 × 666,479.10
  4. Step 4: Simplify right side
    1,519,409.10x = 1,518,762,975,780.96
  5. Step 5: Solve for x
    x = 1,518,762,975,780.96/1,519,409.10
  6. Step 6: Final answer
    x = 999,574.75

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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.