Finding the Fourth Proportional to 664,455.80, 996,683.70 and 571,143.80
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Solution
The fourth proportional to 664,455.80, 996,683.70 and 571,143.80 is: 856,715.70
Step by Step Solution
- Step 1: Write the proportion equation
664,455.80 : 996,683.70 = 571,143.80 : x - Step 2: Convert to fraction form
664,455.80/996,683.70 = 571,143.80/x - Step 3: Cross multiply
664,455.80x = 996,683.70 × 571,143.80 - Step 4: Simplify right side
664,455.80x = 569,249,715,816.06 - Step 5: Solve for x
x = 569,249,715,816.06/664,455.80 - Step 6: Final answer
x = 856,715.70
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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.