Finding the Fourth Proportional to 1,142,902.60, 1,577,224.74 and 626,645.80
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Solution
The fourth proportional to 1,142,902.60, 1,577,224.74 and 626,645.80 is: 864,781.70
Step by Step Solution
- Step 1: Write the proportion equation
1,142,902.60 : 1,577,224.74 = 626,645.80 : x - Step 2: Convert to fraction form
1,142,902.60/1,577,224.74 = 626,645.80/x - Step 3: Cross multiply
1,142,902.60x = 1,577,224.74 × 626,645.80 - Step 4: Simplify right side
1,142,902.60x = 988,361,258,977.09 - Step 5: Solve for x
x = 988,361,258,977.09/1,142,902.60 - Step 6: Final answer
x = 864,781.70
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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.