Home / 1,425,688.64-1,967,450.28-781,133.24

Finding the Fourth Proportional to 1,425,688.64, 1,967,450.28 and 781,133.24

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Solution

The fourth proportional to 1,425,688.64, 1,967,450.28 and 781,133.24 is: 1,077,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,688.64 : 1,967,450.28 = 781,133.24 : x
  2. Step 2: Convert to fraction form
    1,425,688.64/1,967,450.28 = 781,133.24/x
  3. Step 3: Cross multiply
    1,425,688.64x = 1,967,450.28 × 781,133.24
  4. Step 4: Simplify right side
    1,425,688.64x = 1,536,840,811,755.31
  5. Step 5: Solve for x
    x = 1,536,840,811,755.31/1,425,688.64
  6. Step 6: Final answer
    x = 1,077,963.85

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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.