Home / 5,355,143.60-8,032,664.20-1,311,649.20

Finding the Fourth Proportional to 5,355,143.60, 8,032,664.20 and 1,311,649.20

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Solution

The fourth proportional to 5,355,143.60, 8,032,664.20 and 1,311,649.20 is: 1,967,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355,143.60 : 8,032,664.20 = 1,311,649.20 : x
  2. Step 2: Convert to fraction form
    5,355,143.60/8,032,664.20 = 1,311,649.20/x
  3. Step 3: Cross multiply
    5,355,143.60x = 8,032,664.20 × 1,311,649.20
  4. Step 4: Simplify right side
    5,355,143.60x = 10,536,037,571,798.64
  5. Step 5: Solve for x
    x = 10,536,037,571,798.64/5,355,143.60
  6. Step 6: Final answer
    x = 1,967,461.26

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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.