Finding the Fourth Proportional to 1,115,392.02, 1,539,116.06 and 631,853.62
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Solution
The fourth proportional to 1,115,392.02, 1,539,116.06 and 631,853.62 is: 871,887.23
Step by Step Solution
- Step 1: Write the proportion equation
1,115,392.02 : 1,539,116.06 = 631,853.62 : x - Step 2: Convert to fraction form
1,115,392.02/1,539,116.06 = 631,853.62/x - Step 3: Cross multiply
1,115,392.02x = 1,539,116.06 × 631,853.62 - Step 4: Simplify right side
1,115,392.02x = 972,496,054,111.14 - Step 5: Solve for x
x = 972,496,054,111.14/1,115,392.02 - Step 6: Final answer
x = 871,887.23
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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.