Finding the Fourth Proportional to 643,943.66, 888,683.63 and 372,023.01
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Solution
The fourth proportional to 643,943.66, 888,683.63 and 372,023.01 is: 513,415.66
Step by Step Solution
- Step 1: Write the proportion equation
643,943.66 : 888,683.63 = 372,023.01 : x - Step 2: Convert to fraction form
643,943.66/888,683.63 = 372,023.01/x - Step 3: Cross multiply
643,943.66x = 888,683.63 × 372,023.01 - Step 4: Simplify right side
643,943.66x = 330,610,757,110.21 - Step 5: Solve for x
x = 330,610,757,110.21/643,943.66 - Step 6: Final answer
x = 513,415.66
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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.