Finding the Fourth Proportional to 538,987.80, 808,368.30 and 272,497.80
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Solution
The fourth proportional to 538,987.80, 808,368.30 and 272,497.80 is: 408,689.37
Step by Step Solution
- Step 1: Write the proportion equation
538,987.80 : 808,368.30 = 272,497.80 : x - Step 2: Convert to fraction form
538,987.80/808,368.30 = 272,497.80/x - Step 3: Cross multiply
538,987.80x = 808,368.30 × 272,497.80 - Step 4: Simplify right side
538,987.80x = 220,278,583,339.74 - Step 5: Solve for x
x = 220,278,583,339.74/538,987.80 - Step 6: Final answer
x = 408,689.37
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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.