Finding the Fourth Proportional to 657,861.28, 907,870.58 and 403,163.28
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Solution
The fourth proportional to 657,861.28, 907,870.58 and 403,163.28 is: 556,378.82
Step by Step Solution
- Step 1: Write the proportion equation
657,861.28 : 907,870.58 = 403,163.28 : x - Step 2: Convert to fraction form
657,861.28/907,870.58 = 403,163.28/x - Step 3: Cross multiply
657,861.28x = 907,870.58 × 403,163.28 - Step 4: Simplify right side
657,861.28x = 366,020,080,848.30 - Step 5: Solve for x
x = 366,020,080,848.30/657,861.28 - Step 6: Final answer
x = 556,378.82
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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.