Finding the Fourth Proportional to 779,689.68, 1,076,231.25 and 457,282.14
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Solution
The fourth proportional to 779,689.68, 1,076,231.25 and 457,282.14 is: 631,201.54
Step by Step Solution
- Step 1: Write the proportion equation
779,689.68 : 1,076,231.25 = 457,282.14 : x - Step 2: Convert to fraction form
779,689.68/1,076,231.25 = 457,282.14/x - Step 3: Cross multiply
779,689.68x = 1,076,231.25 × 457,282.14 - Step 4: Simplify right side
779,689.68x = 492,141,329,134.88 - Step 5: Solve for x
x = 492,141,329,134.88/779,689.68 - Step 6: Final answer
x = 631,201.54
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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.