Finding the Fourth Proportional to 686,125.99, 946,543.35 and 414,106.93
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Solution
The fourth proportional to 686,125.99, 946,543.35 and 414,106.93 is: 571,280.15
Step by Step Solution
- Step 1: Write the proportion equation
686,125.99 : 946,543.35 = 414,106.93 : x - Step 2: Convert to fraction form
686,125.99/946,543.35 = 414,106.93/x - Step 3: Cross multiply
686,125.99x = 946,543.35 × 414,106.93 - Step 4: Simplify right side
686,125.99x = 391,970,153,977.16 - Step 5: Solve for x
x = 391,970,153,977.16/686,125.99 - Step 6: Final answer
x = 571,280.15
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1.5x scale
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.