Finding the Fourth Proportional to 813,124.80, 1,122,111.12 and 450,572.14
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Solution
The fourth proportional to 813,124.80, 1,122,111.12 and 450,572.14 is: 621,788.94
Step by Step Solution
- Step 1: Write the proportion equation
813,124.80 : 1,122,111.12 = 450,572.14 : x - Step 2: Convert to fraction form
813,124.80/1,122,111.12 = 450,572.14/x - Step 3: Cross multiply
813,124.80x = 1,122,111.12 × 450,572.14 - Step 4: Simplify right side
813,124.80x = 505,592,008,656.20 - Step 5: Solve for x
x = 505,592,008,656.20/813,124.80 - Step 6: Final answer
x = 621,788.94
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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.