Finding the Fourth Proportional to 690,281.52, 952,613.68 and 384,373.68
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Solution
The fourth proportional to 690,281.52, 952,613.68 and 384,373.68 is: 530,449.70
Step by Step Solution
- Step 1: Write the proportion equation
690,281.52 : 952,613.68 = 384,373.68 : x - Step 2: Convert to fraction form
690,281.52/952,613.68 = 384,373.68/x - Step 3: Cross multiply
690,281.52x = 952,613.68 × 384,373.68 - Step 4: Simplify right side
690,281.52x = 366,159,625,799.94 - Step 5: Solve for x
x = 366,159,625,799.94/690,281.52 - Step 6: Final answer
x = 530,449.70
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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.