Finding the Fourth Proportional to 528,545.10, 729,392.70 and 286,827.66
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Solution
The fourth proportional to 528,545.10, 729,392.70 and 286,827.66 is: 395,822.42
Step by Step Solution
- Step 1: Write the proportion equation
528,545.10 : 729,392.70 = 286,827.66 : x - Step 2: Convert to fraction form
528,545.10/729,392.70 = 286,827.66/x - Step 3: Cross multiply
528,545.10x = 729,392.70 × 286,827.66 - Step 4: Simplify right side
528,545.10x = 209,210,001,362.08 - Step 5: Solve for x
x = 209,210,001,362.08/528,545.10 - Step 6: Final answer
x = 395,822.42
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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.