Finding the Fourth Proportional to 740,261.80, 1,110,392.70 and 687,117.70
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Solution
The fourth proportional to 740,261.80, 1,110,392.70 and 687,117.70 is: 1,030,676.55
Step by Step Solution
- Step 1: Write the proportion equation
740,261.80 : 1,110,392.70 = 687,117.70 : x - Step 2: Convert to fraction form
740,261.80/1,110,392.70 = 687,117.70/x - Step 3: Cross multiply
740,261.80x = 1,110,392.70 × 687,117.70 - Step 4: Simplify right side
740,261.80x = 762,970,478,120.79 - Step 5: Solve for x
x = 762,970,478,120.79/740,261.80 - Step 6: Final answer
x = 1,030,676.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.