Finding the Fourth Proportional to 539,636.71, 744,699.61 and 297,919.68
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Solution
The fourth proportional to 539,636.71, 744,699.61 and 297,919.68 is: 411,129.67
Step by Step Solution
- Step 1: Write the proportion equation
539,636.71 : 744,699.61 = 297,919.68 : x - Step 2: Convert to fraction form
539,636.71/744,699.61 = 297,919.68/x - Step 3: Cross multiply
539,636.71x = 744,699.61 × 297,919.68 - Step 4: Simplify right side
539,636.71x = 221,860,664,294.23 - Step 5: Solve for x
x = 221,860,664,294.23/539,636.71 - Step 6: Final answer
x = 411,129.67
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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.