Home / 1,380,827.64-1,905,526.80-768,967.05

Finding the Fourth Proportional to 1,380,827.64, 1,905,526.80 and 768,967.05

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Solution

The fourth proportional to 1,380,827.64, 1,905,526.80 and 768,967.05 is: 1,061,165.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,827.64 : 1,905,526.80 = 768,967.05 : x
  2. Step 2: Convert to fraction form
    1,380,827.64/1,905,526.80 = 768,967.05/x
  3. Step 3: Cross multiply
    1,380,827.64x = 1,905,526.80 × 768,967.05
  4. Step 4: Simplify right side
    1,380,827.64x = 1,465,287,322,091.94
  5. Step 5: Solve for x
    x = 1,465,287,322,091.94/1,380,827.64
  6. Step 6: Final answer
    x = 1,061,165.98

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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.