Finding the Fourth Proportional to 987,225.47, 1,479,718.73 and 453,643.94
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Solution
The fourth proportional to 987,225.47, 1,479,718.73 and 453,643.94 is: 679,951.50
Step by Step Solution
- Step 1: Write the proportion equation
987,225.47 : 1,479,718.73 = 453,643.94 : x - Step 2: Convert to fraction form
987,225.47/1,479,718.73 = 453,643.94/x - Step 3: Cross multiply
987,225.47x = 1,479,718.73 × 453,643.94 - Step 4: Simplify right side
987,225.47x = 671,265,439,602.40 - Step 5: Solve for x
x = 671,265,439,602.40/987,225.47 - Step 6: Final answer
x = 679,951.50
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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.