Finding the Fourth Proportional to 579,564.73, 869,248.68 and 153,105.20
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Solution
The fourth proportional to 579,564.73, 869,248.68 and 153,105.20 is: 229,631.80
Step by Step Solution
- Step 1: Write the proportion equation
579,564.73 : 869,248.68 = 153,105.20 : x - Step 2: Convert to fraction form
579,564.73/869,248.68 = 153,105.20/x - Step 3: Cross multiply
579,564.73x = 869,248.68 × 153,105.20 - Step 4: Simplify right side
579,564.73x = 133,086,493,001.14 - Step 5: Solve for x
x = 133,086,493,001.14/579,564.73 - Step 6: Final answer
x = 229,631.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.