Finding the Fourth Proportional to 1,630,831.69, 2,250,486.09 and 905,726.11
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Solution
The fourth proportional to 1,630,831.69, 2,250,486.09 and 905,726.11 is: 1,249,867.80
Step by Step Solution
- Step 1: Write the proportion equation
1,630,831.69 : 2,250,486.09 = 905,726.11 : x - Step 2: Convert to fraction form
1,630,831.69/2,250,486.09 = 905,726.11/x - Step 3: Cross multiply
1,630,831.69x = 2,250,486.09 × 905,726.11 - Step 4: Simplify right side
1,630,831.69x = 2,038,324,011,904.81 - Step 5: Solve for x
x = 2,038,324,011,904.81/1,630,831.69 - Step 6: Final answer
x = 1,249,867.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.