Finding the Fourth Proportional to 649,712.75, 975,011.99 and 390,268.94
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Solution
The fourth proportional to 649,712.75, 975,011.99 and 390,268.94 is: 585,669.42
Step by Step Solution
- Step 1: Write the proportion equation
649,712.75 : 975,011.99 = 390,268.94 : x - Step 2: Convert to fraction form
649,712.75/975,011.99 = 390,268.94/x - Step 3: Cross multiply
649,712.75x = 975,011.99 × 390,268.94 - Step 4: Simplify right side
649,712.75x = 380,516,888,998.19 - Step 5: Solve for x
x = 380,516,888,998.19/649,712.75 - Step 6: Final answer
x = 585,669.42
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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.