Finding the Fourth Proportional to 918,969.84, 1,268,236.44 and 516,587.76
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Solution
The fourth proportional to 918,969.84, 1,268,236.44 and 516,587.76 is: 712,923.75
Step by Step Solution
- Step 1: Write the proportion equation
918,969.84 : 1,268,236.44 = 516,587.76 : x - Step 2: Convert to fraction form
918,969.84/1,268,236.44 = 516,587.76/x - Step 3: Cross multiply
918,969.84x = 1,268,236.44 × 516,587.76 - Step 4: Simplify right side
918,969.84x = 655,155,421,689.97 - Step 5: Solve for x
x = 655,155,421,689.97/918,969.84 - Step 6: Final answer
x = 712,923.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.