Finding the Fourth Proportional to 498,963.68, 688,374.42 and 307,644.92
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Solution
The fourth proportional to 498,963.68, 688,374.42 and 307,644.92 is: 424,429.48
Step by Step Solution
- Step 1: Write the proportion equation
498,963.68 : 688,374.42 = 307,644.92 : x - Step 2: Convert to fraction form
498,963.68/688,374.42 = 307,644.92/x - Step 3: Cross multiply
498,963.68x = 688,374.42 × 307,644.92 - Step 4: Simplify right side
498,963.68x = 211,774,893,370.95 - Step 5: Solve for x
x = 211,774,893,370.95/498,963.68 - Step 6: Final answer
x = 424,429.48
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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.