Finding the Fourth Proportional to 726,861,875.70, 1,090,292,813.55 and 436,624,230.90
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Solution
The fourth proportional to 726,861,875.70, 1,090,292,813.55 and 436,624,230.90 is: 654,936,346.35
Step by Step Solution
- Step 1: Write the proportion equation
726,861,875.70 : 1,090,292,813.55 = 436,624,230.90 : x - Step 2: Convert to fraction form
726,861,875.70/1,090,292,813.55 = 436,624,230.90/x - Step 3: Cross multiply
726,861,875.70x = 1,090,292,813.55 × 436,624,230.90 - Step 4: Simplify right side
726,861,875.70x = 476,048,261,172,065,792 - Step 5: Solve for x
x = 476,048,261,172,065,792/726,861,875.70 - Step 6: Final answer
x = 654,936,346.35
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1.5x scale
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.