Finding the Fourth Proportional to 668,521.98, 1,003,089.15 and 289,558.62
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Solution
The fourth proportional to 668,521.98, 1,003,089.15 and 289,558.62 is: 434,470.55
Step by Step Solution
- Step 1: Write the proportion equation
668,521.98 : 1,003,089.15 = 289,558.62 : x - Step 2: Convert to fraction form
668,521.98/1,003,089.15 = 289,558.62/x - Step 3: Cross multiply
668,521.98x = 1,003,089.15 × 289,558.62 - Step 4: Simplify right side
668,521.98x = 290,453,110,010.97 - Step 5: Solve for x
x = 290,453,110,010.97/668,521.98 - Step 6: Final answer
x = 434,470.55
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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.