Home / 780,308.64-1,076,872.32-436,162.32

Finding the Fourth Proportional to 780,308.64, 1,076,872.32 and 436,162.32

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Solution

The fourth proportional to 780,308.64, 1,076,872.32 and 436,162.32 is: 601,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,308.64 : 1,076,872.32 = 436,162.32 : x
  2. Step 2: Convert to fraction form
    780,308.64/1,076,872.32 = 436,162.32/x
  3. Step 3: Cross multiply
    780,308.64x = 1,076,872.32 × 436,162.32
  4. Step 4: Simplify right side
    780,308.64x = 469,691,129,434.98
  5. Step 5: Solve for x
    x = 469,691,129,434.98/780,308.64
  6. Step 6: Final answer
    x = 601,929.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.