Finding the Fourth Proportional to 740.08, 1,107.80 and 542
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Solution
The fourth proportional to 740.08, 1,107.80 and 542 is: 811.30
Step by Step Solution
- Step 1: Write the proportion equation
740.08 : 1,107.80 = 542 : x - Step 2: Convert to fraction form
740.08/1,107.80 = 542/x - Step 3: Cross multiply
740.08x = 1,107.80 × 542 - Step 4: Simplify right side
740.08x = 600,427.60 - Step 5: Solve for x
x = 600,427.60/740.08 - Step 6: Final answer
x = 811.30
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.