Home / 1,427,312.98-1,969,510.44-815,505.37

Finding the Fourth Proportional to 1,427,312.98, 1,969,510.44 and 815,505.37

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Solution

The fourth proportional to 1,427,312.98, 1,969,510.44 and 815,505.37 is: 1,125,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,312.98 : 1,969,510.44 = 815,505.37 : x
  2. Step 2: Convert to fraction form
    1,427,312.98/1,969,510.44 = 815,505.37/x
  3. Step 3: Cross multiply
    1,427,312.98x = 1,969,510.44 × 815,505.37
  4. Step 4: Simplify right side
    1,427,312.98x = 1,606,146,338,225.43
  5. Step 5: Solve for x
    x = 1,606,146,338,225.43/1,427,312.98
  6. Step 6: Final answer
    x = 1,125,293.72

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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.