Finding the Fourth Proportional to 652,309.96, 900,286.14 and 397,808.78
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Solution
The fourth proportional to 652,309.96, 900,286.14 and 397,808.78 is: 549,036.12
Step by Step Solution
- Step 1: Write the proportion equation
652,309.96 : 900,286.14 = 397,808.78 : x - Step 2: Convert to fraction form
652,309.96/900,286.14 = 397,808.78/x - Step 3: Cross multiply
652,309.96x = 900,286.14 × 397,808.78 - Step 4: Simplify right side
652,309.96x = 358,141,731,004.31 - Step 5: Solve for x
x = 358,141,731,004.31/652,309.96 - Step 6: Final answer
x = 549,036.12
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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.