Finding the Fourth Proportional to 709,805.79, 979,495.17 and 403,875.99
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Solution
The fourth proportional to 709,805.79, 979,495.17 and 403,875.99 is: 557,327.92
Step by Step Solution
- Step 1: Write the proportion equation
709,805.79 : 979,495.17 = 403,875.99 : x - Step 2: Convert to fraction form
709,805.79/979,495.17 = 403,875.99/x - Step 3: Cross multiply
709,805.79x = 979,495.17 × 403,875.99 - Step 4: Simplify right side
709,805.79x = 395,594,581,483.97 - Step 5: Solve for x
x = 395,594,581,483.97/709,805.79 - Step 6: Final answer
x = 557,327.92
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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.