Home / 1,311,666.55-1,968,071.61-459,349.62

Finding the Fourth Proportional to 1,311,666.55, 1,968,071.61 and 459,349.62

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Solution

The fourth proportional to 1,311,666.55, 1,968,071.61 and 459,349.62 is: 689,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,666.55 : 1,968,071.61 = 459,349.62 : x
  2. Step 2: Convert to fraction form
    1,311,666.55/1,968,071.61 = 459,349.62/x
  3. Step 3: Cross multiply
    1,311,666.55x = 1,968,071.61 × 459,349.62
  4. Step 4: Simplify right side
    1,311,666.55x = 904,032,936,345.93
  5. Step 5: Solve for x
    x = 904,032,936,345.93/1,311,666.55
  6. Step 6: Final answer
    x = 689,224.67

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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.