Finding the Fourth Proportional to 1,698,430.14, 2,343,448.26 and 1,239,794.64
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Solution
The fourth proportional to 1,698,430.14, 2,343,448.26 and 1,239,794.64 is: 1,710,635.32
Step by Step Solution
- Step 1: Write the proportion equation
1,698,430.14 : 2,343,448.26 = 1,239,794.64 : x - Step 2: Convert to fraction form
1,698,430.14/2,343,448.26 = 1,239,794.64/x - Step 3: Cross multiply
1,698,430.14x = 2,343,448.26 × 1,239,794.64 - Step 4: Simplify right side
1,698,430.14x = 2,905,394,591,865.33 - Step 5: Solve for x
x = 2,905,394,591,865.33/1,698,430.14 - Step 6: Final answer
x = 1,710,635.32
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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.