Finding the Fourth Proportional to 715,263.76, 1,071,478.66 and 490,070.80
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Solution
The fourth proportional to 715,263.76, 1,071,478.66 and 490,070.80 is: 734,135.34
Step by Step Solution
- Step 1: Write the proportion equation
715,263.76 : 1,071,478.66 = 490,070.80 : x - Step 2: Convert to fraction form
715,263.76/1,071,478.66 = 490,070.80/x - Step 3: Cross multiply
715,263.76x = 1,071,478.66 × 490,070.80 - Step 4: Simplify right side
715,263.76x = 525,100,404,089.13 - Step 5: Solve for x
x = 525,100,404,089.13/715,263.76 - Step 6: Final answer
x = 734,135.34
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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.