Home / 1,118,730.60-1,678,338.96-408,757.56

Finding the Fourth Proportional to 1,118,730.60, 1,678,338.96 and 408,757.56

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Solution

The fourth proportional to 1,118,730.60, 1,678,338.96 and 408,757.56 is: 613,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,730.60 : 1,678,338.96 = 408,757.56 : x
  2. Step 2: Convert to fraction form
    1,118,730.60/1,678,338.96 = 408,757.56/x
  3. Step 3: Cross multiply
    1,118,730.60x = 1,678,338.96 × 408,757.56
  4. Step 4: Simplify right side
    1,118,730.60x = 686,033,738,142.54
  5. Step 5: Solve for x
    x = 686,033,738,142.54/1,118,730.60
  6. Step 6: Final answer
    x = 613,225.15

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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.