Finding the Fourth Proportional to 685,953.12, 1,028,930.10 and 286,376.07
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Solution
The fourth proportional to 685,953.12, 1,028,930.10 and 286,376.07 is: 429,564.28
Step by Step Solution
- Step 1: Write the proportion equation
685,953.12 : 1,028,930.10 = 286,376.07 : x - Step 2: Convert to fraction form
685,953.12/1,028,930.10 = 286,376.07/x - Step 3: Cross multiply
685,953.12x = 1,028,930.10 × 286,376.07 - Step 4: Simplify right side
685,953.12x = 294,660,958,342.71 - Step 5: Solve for x
x = 294,660,958,342.71/685,953.12 - Step 6: Final answer
x = 429,564.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.