Finding the Fourth Proportional to 502,139.09, 692,751.61 and 320,803.99
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Solution
The fourth proportional to 502,139.09, 692,751.61 and 320,803.99 is: 442,581.52
Step by Step Solution
- Step 1: Write the proportion equation
502,139.09 : 692,751.61 = 320,803.99 : x - Step 2: Convert to fraction form
502,139.09/692,751.61 = 320,803.99/x - Step 3: Cross multiply
502,139.09x = 692,751.61 × 320,803.99 - Step 4: Simplify right side
502,139.09x = 222,237,480,566.92 - Step 5: Solve for x
x = 222,237,480,566.92/502,139.09 - Step 6: Final answer
x = 442,581.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.