Finding the Fourth Proportional to 708,812.08, 978,184.29 and 386,539.81
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Solution
The fourth proportional to 708,812.08, 978,184.29 and 386,539.81 is: 533,437.82
Step by Step Solution
- Step 1: Write the proportion equation
708,812.08 : 978,184.29 = 386,539.81 : x - Step 2: Convert to fraction form
708,812.08/978,184.29 = 386,539.81/x - Step 3: Cross multiply
708,812.08x = 978,184.29 × 386,539.81 - Step 4: Simplify right side
708,812.08x = 378,107,169,601.59 - Step 5: Solve for x
x = 378,107,169,601.59/708,812.08 - Step 6: Final answer
x = 533,437.82
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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.