Finding the Fourth Proportional to 698,875.12, 1,048,109.92 and 272,315.80
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Solution
The fourth proportional to 698,875.12, 1,048,109.92 and 272,315.80 is: 408,394.69
Step by Step Solution
- Step 1: Write the proportion equation
698,875.12 : 1,048,109.92 = 272,315.80 : x - Step 2: Convert to fraction form
698,875.12/1,048,109.92 = 272,315.80/x - Step 3: Cross multiply
698,875.12x = 1,048,109.92 × 272,315.80 - Step 4: Simplify right side
698,875.12x = 285,416,891,352.74 - Step 5: Solve for x
x = 285,416,891,352.74/698,875.12 - Step 6: Final answer
x = 408,394.69
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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.