Home / 1,305,649.64-1,958,465.10-919,810.64

Finding the Fourth Proportional to 1,305,649.64, 1,958,465.10 and 919,810.64

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Solution

The fourth proportional to 1,305,649.64, 1,958,465.10 and 919,810.64 is: 1,379,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,649.64 : 1,958,465.10 = 919,810.64 : x
  2. Step 2: Convert to fraction form
    1,305,649.64/1,958,465.10 = 919,810.64/x
  3. Step 3: Cross multiply
    1,305,649.64x = 1,958,465.10 × 919,810.64
  4. Step 4: Simplify right side
    1,305,649.64x = 1,801,417,037,048.66
  5. Step 5: Solve for x
    x = 1,801,417,037,048.66/1,305,649.64
  6. Step 6: Final answer
    x = 1,379,709.37

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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.