Finding the Fourth Proportional to 660,345.87, 911,280.93 and 358,539.87
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Solution
The fourth proportional to 660,345.87, 911,280.93 and 358,539.87 is: 494,786.99
Step by Step Solution
- Step 1: Write the proportion equation
660,345.87 : 911,280.93 = 358,539.87 : x - Step 2: Convert to fraction form
660,345.87/911,280.93 = 358,539.87/x - Step 3: Cross multiply
660,345.87x = 911,280.93 × 358,539.87 - Step 4: Simplify right side
660,345.87x = 326,730,546,175.68 - Step 5: Solve for x
x = 326,730,546,175.68/660,345.87 - Step 6: Final answer
x = 494,786.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.