Finding the Fourth Proportional to 703,986.26, 971,495.15 and 398,122.67
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Solution
The fourth proportional to 703,986.26, 971,495.15 and 398,122.67 is: 549,405.96
Step by Step Solution
- Step 1: Write the proportion equation
703,986.26 : 971,495.15 = 398,122.67 : x - Step 2: Convert to fraction form
703,986.26/971,495.15 = 398,122.67/x - Step 3: Cross multiply
703,986.26x = 971,495.15 × 398,122.67 - Step 4: Simplify right side
703,986.26x = 386,774,243,448.18 - Step 5: Solve for x
x = 386,774,243,448.18/703,986.26 - Step 6: Final answer
x = 549,405.96
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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.