Finding the Fourth Proportional to 486,487.59, 729,733.98 and 319,068.09
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Solution
The fourth proportional to 486,487.59, 729,733.98 and 319,068.09 is: 478,603.85
Step by Step Solution
- Step 1: Write the proportion equation
486,487.59 : 729,733.98 = 319,068.09 : x - Step 2: Convert to fraction form
486,487.59/729,733.98 = 319,068.09/x - Step 3: Cross multiply
486,487.59x = 729,733.98 × 319,068.09 - Step 4: Simplify right side
486,487.59x = 232,834,830,227.54 - Step 5: Solve for x
x = 232,834,830,227.54/486,487.59 - Step 6: Final answer
x = 478,603.85
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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.