Finding the Fourth Proportional to 1,279,403.97, 1,918,575.44 and 520,730.52
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Solution
The fourth proportional to 1,279,403.97, 1,918,575.44 and 520,730.52 is: 780,879.85
Step by Step Solution
- Step 1: Write the proportion equation
1,279,403.97 : 1,918,575.44 = 520,730.52 : x - Step 2: Convert to fraction form
1,279,403.97/1,918,575.44 = 520,730.52/x - Step 3: Cross multiply
1,279,403.97x = 1,918,575.44 × 520,730.52 - Step 4: Simplify right side
1,279,403.97x = 999,060,783,926.78 - Step 5: Solve for x
x = 999,060,783,926.78/1,279,403.97 - Step 6: Final answer
x = 780,879.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.