Finding the Fourth Proportional to 985,581.19, 1,478,371.99 and 346,386.70
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Solution
The fourth proportional to 985,581.19, 1,478,371.99 and 346,386.70 is: 519,580.12
Step by Step Solution
- Step 1: Write the proportion equation
985,581.19 : 1,478,371.99 = 346,386.70 : x - Step 2: Convert to fraction form
985,581.19/1,478,371.99 = 346,386.70/x - Step 3: Cross multiply
985,581.19x = 1,478,371.99 × 346,386.70 - Step 4: Simplify right side
985,581.19x = 512,088,394,988.53 - Step 5: Solve for x
x = 512,088,394,988.53/985,581.19 - Step 6: Final answer
x = 519,580.12
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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.