Finding the Fourth Proportional to 955,600.79, 1,318,432.20 and 542,069.42
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Solution
The fourth proportional to 955,600.79, 1,318,432.20 and 542,069.42 is: 747,887.39
Step by Step Solution
- Step 1: Write the proportion equation
955,600.79 : 1,318,432.20 = 542,069.42 : x - Step 2: Convert to fraction form
955,600.79/1,318,432.20 = 542,069.42/x - Step 3: Cross multiply
955,600.79x = 1,318,432.20 × 542,069.42 - Step 4: Simplify right side
955,600.79x = 714,681,777,963.32 - Step 5: Solve for x
x = 714,681,777,963.32/955,600.79 - Step 6: Final answer
x = 747,887.39
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Double scale
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1.5x scale
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.