Finding the Fourth Proportional to 660,588.52, 911,989.86 and 434,890.12
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Solution
The fourth proportional to 660,588.52, 911,989.86 and 434,890.12 is: 600,397.02
Step by Step Solution
- Step 1: Write the proportion equation
660,588.52 : 911,989.86 = 434,890.12 : x - Step 2: Convert to fraction form
660,588.52/911,989.86 = 434,890.12/x - Step 3: Cross multiply
660,588.52x = 911,989.86 × 434,890.12 - Step 4: Simplify right side
660,588.52x = 396,615,379,654.18 - Step 5: Solve for x
x = 396,615,379,654.18/660,588.52 - Step 6: Final answer
x = 600,397.02
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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.