Finding the Fourth Proportional to 389,513.80, 584,270.70 and 249,545.80
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Solution
The fourth proportional to 389,513.80, 584,270.70 and 249,545.80 is: 374,318.70
Step by Step Solution
- Step 1: Write the proportion equation
389,513.80 : 584,270.70 = 249,545.80 : x - Step 2: Convert to fraction form
389,513.80/584,270.70 = 249,545.80/x - Step 3: Cross multiply
389,513.80x = 584,270.70 × 249,545.80 - Step 4: Simplify right side
389,513.80x = 145,802,299,248.06 - Step 5: Solve for x
x = 145,802,299,248.06/389,513.80 - Step 6: Final answer
x = 374,318.70
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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.