Finding the Fourth Proportional to 891,133.30, 1,336,699.95 and 513,219.70
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Solution
The fourth proportional to 891,133.30, 1,336,699.95 and 513,219.70 is: 769,829.55
Step by Step Solution
- Step 1: Write the proportion equation
891,133.30 : 1,336,699.95 = 513,219.70 : x - Step 2: Convert to fraction form
891,133.30/1,336,699.95 = 513,219.70/x - Step 3: Cross multiply
891,133.30x = 1,336,699.95 × 513,219.70 - Step 4: Simplify right side
891,133.30x = 686,020,747,329.02 - Step 5: Solve for x
x = 686,020,747,329.02/891,133.30 - Step 6: Final answer
x = 769,829.55
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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.