Finding the Fourth Proportional to 1,209,130.41, 1,812,320.63 and 631,863.66
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Solution
The fourth proportional to 1,209,130.41, 1,812,320.63 and 631,863.66 is: 947,076.95
Step by Step Solution
- Step 1: Write the proportion equation
1,209,130.41 : 1,812,320.63 = 631,863.66 : x - Step 2: Convert to fraction form
1,209,130.41/1,812,320.63 = 631,863.66/x - Step 3: Cross multiply
1,209,130.41x = 1,812,320.63 × 631,863.66 - Step 4: Simplify right side
1,209,130.41x = 1,145,139,546,365.31 - Step 5: Solve for x
x = 1,145,139,546,365.31/1,209,130.41 - Step 6: Final answer
x = 947,076.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.