Home / 1,210,630.10-1,815,940.28-369,179.42

Finding the Fourth Proportional to 1,210,630.10, 1,815,940.28 and 369,179.42

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Solution

The fourth proportional to 1,210,630.10, 1,815,940.28 and 369,179.42 is: 553,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,630.10 : 1,815,940.28 = 369,179.42 : x
  2. Step 2: Convert to fraction form
    1,210,630.10/1,815,940.28 = 369,179.42/x
  3. Step 3: Cross multiply
    1,210,630.10x = 1,815,940.28 × 369,179.42
  4. Step 4: Simplify right side
    1,210,630.10x = 670,407,779,325.04
  5. Step 5: Solve for x
    x = 670,407,779,325.04/1,210,630.10
  6. Step 6: Final answer
    x = 553,767.64

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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.