Finding the Fourth Proportional to 947,315.05, 1,307,307.29 and 539,418.53
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Solution
The fourth proportional to 947,315.05, 1,307,307.29 and 539,418.53 is: 744,404.70
Step by Step Solution
- Step 1: Write the proportion equation
947,315.05 : 1,307,307.29 = 539,418.53 : x - Step 2: Convert to fraction form
947,315.05/1,307,307.29 = 539,418.53/x - Step 3: Cross multiply
947,315.05x = 1,307,307.29 × 539,418.53 - Step 4: Simplify right side
947,315.05x = 705,185,777,201.26 - Step 5: Solve for x
x = 705,185,777,201.26/947,315.05 - Step 6: Final answer
x = 744,404.70
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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.