Finding the Fourth Proportional to 1,114,746.84, 1,538,386.97 and 631,301.58
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Solution
The fourth proportional to 1,114,746.84, 1,538,386.97 and 631,301.58 is: 871,216.75
Step by Step Solution
- Step 1: Write the proportion equation
1,114,746.84 : 1,538,386.97 = 631,301.58 : x - Step 2: Convert to fraction form
1,114,746.84/1,538,386.97 = 631,301.58/x - Step 3: Cross multiply
1,114,746.84x = 1,538,386.97 × 631,301.58 - Step 4: Simplify right side
1,114,746.84x = 971,186,121,655.91 - Step 5: Solve for x
x = 971,186,121,655.91/1,114,746.84 - Step 6: Final answer
x = 871,216.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.