Finding the Fourth Proportional to 939,228.66, 1,294,345.71 and 921,953.79
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Solution
The fourth proportional to 939,228.66, 1,294,345.71 and 921,953.79 is: 1,270,539.31
Step by Step Solution
- Step 1: Write the proportion equation
939,228.66 : 1,294,345.71 = 921,953.79 : x - Step 2: Convert to fraction form
939,228.66/1,294,345.71 = 921,953.79/x - Step 3: Cross multiply
939,228.66x = 1,294,345.71 × 921,953.79 - Step 4: Simplify right side
939,228.66x = 1,193,326,932,904.74 - Step 5: Solve for x
x = 1,193,326,932,904.74/939,228.66 - Step 6: Final answer
x = 1,270,539.31
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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.