Finding the Fourth Proportional to 1,403,277.21, 1,935,231.35 and 919,666.71
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Solution
The fourth proportional to 1,403,277.21, 1,935,231.35 and 919,666.71 is: 1,268,293.84
Step by Step Solution
- Step 1: Write the proportion equation
1,403,277.21 : 1,935,231.35 = 919,666.71 : x - Step 2: Convert to fraction form
1,403,277.21/1,935,231.35 = 919,666.71/x - Step 3: Cross multiply
1,403,277.21x = 1,935,231.35 × 919,666.71 - Step 4: Simplify right side
1,403,277.21x = 1,779,767,844,145.03 - Step 5: Solve for x
x = 1,779,767,844,145.03/1,403,277.21 - Step 6: Final answer
x = 1,268,293.84
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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.