Finding the Fourth Proportional to 1,285,270.60, 1,916,415.25 and 1,249,958.84
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Solution
The fourth proportional to 1,285,270.60, 1,916,415.25 and 1,249,958.84 is: 1,863,763.31
Step by Step Solution
- Step 1: Write the proportion equation
1,285,270.60 : 1,916,415.25 = 1,249,958.84 : x - Step 2: Convert to fraction form
1,285,270.60/1,916,415.25 = 1,249,958.84/x - Step 3: Cross multiply
1,285,270.60x = 1,916,415.25 × 1,249,958.84 - Step 4: Simplify right side
1,285,270.60x = 2,395,440,182,848.31 - Step 5: Solve for x
x = 2,395,440,182,848.31/1,285,270.60 - Step 6: Final answer
x = 1,863,763.31
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.