Home / 1,381,683.30-2,072,816.55-435,149.70

Finding the Fourth Proportional to 1,381,683.30, 2,072,816.55 and 435,149.70

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Solution

The fourth proportional to 1,381,683.30, 2,072,816.55 and 435,149.70 is: 652,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,683.30 : 2,072,816.55 = 435,149.70 : x
  2. Step 2: Convert to fraction form
    1,381,683.30/2,072,816.55 = 435,149.70/x
  3. Step 3: Cross multiply
    1,381,683.30x = 2,072,816.55 × 435,149.70
  4. Step 4: Simplify right side
    1,381,683.30x = 901,985,499,887.54
  5. Step 5: Solve for x
    x = 901,985,499,887.54/1,381,683.30
  6. Step 6: Final answer
    x = 652,816.39

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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.