Home / 1,399,472.56-1,931,241.54-779,273.20

Finding the Fourth Proportional to 1,399,472.56, 1,931,241.54 and 779,273.20

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Solution

The fourth proportional to 1,399,472.56, 1,931,241.54 and 779,273.20 is: 1,075,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,472.56 : 1,931,241.54 = 779,273.20 : x
  2. Step 2: Convert to fraction form
    1,399,472.56/1,931,241.54 = 779,273.20/x
  3. Step 3: Cross multiply
    1,399,472.56x = 1,931,241.54 × 779,273.20
  4. Step 4: Simplify right side
    1,399,472.56x = 1,504,964,774,848.73
  5. Step 5: Solve for x
    x = 1,504,964,774,848.73/1,399,472.56
  6. Step 6: Final answer
    x = 1,075,379.98

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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.