Finding the Fourth Proportional to 1,513,989.62, 2,089,235.40 and 868,955.84
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Solution
The fourth proportional to 1,513,989.62, 2,089,235.40 and 868,955.84 is: 1,199,118.72
Step by Step Solution
- Step 1: Write the proportion equation
1,513,989.62 : 2,089,235.40 = 868,955.84 : x - Step 2: Convert to fraction form
1,513,989.62/2,089,235.40 = 868,955.84/x - Step 3: Cross multiply
1,513,989.62x = 2,089,235.40 × 868,955.84 - Step 4: Simplify right side
1,513,989.62x = 1,815,453,301,964.74 - Step 5: Solve for x
x = 1,815,453,301,964.74/1,513,989.62 - Step 6: Final answer
x = 1,199,118.72
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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.