Finding the Fourth Proportional to 1,319,272.02, 1,978,990.11 and 477,831.06
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Solution
The fourth proportional to 1,319,272.02, 1,978,990.11 and 477,831.06 is: 716,776.32
Step by Step Solution
- Step 1: Write the proportion equation
1,319,272.02 : 1,978,990.11 = 477,831.06 : x - Step 2: Convert to fraction form
1,319,272.02/1,978,990.11 = 477,831.06/x - Step 3: Cross multiply
1,319,272.02x = 1,978,990.11 × 477,831.06 - Step 4: Simplify right side
1,319,272.02x = 945,622,941,990.82 - Step 5: Solve for x
x = 945,622,941,990.82/1,319,272.02 - Step 6: Final answer
x = 716,776.32
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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.