Finding the Fourth Proportional to 778,432.06, 1,167,716.13 and 217,468.18
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Solution
The fourth proportional to 778,432.06, 1,167,716.13 and 217,468.18 is: 326,221.28
Step by Step Solution
- Step 1: Write the proportion equation
778,432.06 : 1,167,716.13 = 217,468.18 : x - Step 2: Convert to fraction form
778,432.06/1,167,716.13 = 217,468.18/x - Step 3: Cross multiply
778,432.06x = 1,167,716.13 × 217,468.18 - Step 4: Simplify right side
778,432.06x = 253,941,101,547.74 - Step 5: Solve for x
x = 253,941,101,547.74/778,432.06 - Step 6: Final answer
x = 326,221.28
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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.