Finding the Fourth Proportional to 528,095.94, 728,772.58 and 286,378.44
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Solution
The fourth proportional to 528,095.94, 728,772.58 and 286,378.44 is: 395,202.35
Step by Step Solution
- Step 1: Write the proportion equation
528,095.94 : 728,772.58 = 286,378.44 : x - Step 2: Convert to fraction form
528,095.94/728,772.58 = 286,378.44/x - Step 3: Cross multiply
528,095.94x = 728,772.58 × 286,378.44 - Step 4: Simplify right side
528,095.94x = 208,704,754,575.18 - Step 5: Solve for x
x = 208,704,754,575.18/528,095.94 - Step 6: Final answer
x = 395,202.35
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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.