Home / 1,311,666.48-1,968,071.52-459,349.55

Finding the Fourth Proportional to 1,311,666.48, 1,968,071.52 and 459,349.55

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Solution

The fourth proportional to 1,311,666.48, 1,968,071.52 and 459,349.55 is: 689,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,666.48 : 1,968,071.52 = 459,349.55 : x
  2. Step 2: Convert to fraction form
    1,311,666.48/1,968,071.52 = 459,349.55/x
  3. Step 3: Cross multiply
    1,311,666.48x = 1,968,071.52 × 459,349.55
  4. Step 4: Simplify right side
    1,311,666.48x = 904,032,767,817.35
  5. Step 5: Solve for x
    x = 904,032,767,817.35/1,311,666.48
  6. Step 6: Final answer
    x = 689,224.57

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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.