Finding the Fourth Proportional to 619,774.64, 855,290.78 and 344,133.09
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Solution
The fourth proportional to 619,774.64, 855,290.78 and 344,133.09 is: 474,904.65
Step by Step Solution
- Step 1: Write the proportion equation
619,774.64 : 855,290.78 = 344,133.09 : x - Step 2: Convert to fraction form
619,774.64/855,290.78 = 344,133.09/x - Step 3: Cross multiply
619,774.64x = 855,290.78 × 344,133.09 - Step 4: Simplify right side
619,774.64x = 294,333,858,969.91 - Step 5: Solve for x
x = 294,333,858,969.91/619,774.64 - Step 6: Final answer
x = 474,904.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.