Finding the Fourth Proportional to 749,219.88, 1,033,572.79 and 491,028.13
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Solution
The fourth proportional to 749,219.88, 1,033,572.79 and 491,028.13 is: 677,389.01
Step by Step Solution
- Step 1: Write the proportion equation
749,219.88 : 1,033,572.79 = 491,028.13 : x - Step 2: Convert to fraction form
749,219.88/1,033,572.79 = 491,028.13/x - Step 3: Cross multiply
749,219.88x = 1,033,572.79 × 491,028.13 - Step 4: Simplify right side
749,219.88x = 507,513,314,292.58 - Step 5: Solve for x
x = 507,513,314,292.58/749,219.88 - Step 6: Final answer
x = 677,389.01
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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.