Finding the Fourth Proportional to 497,655.99, 686,548.71 and 316,270.80
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Solution
The fourth proportional to 497,655.99, 686,548.71 and 316,270.80 is: 436,316.08
Step by Step Solution
- Step 1: Write the proportion equation
497,655.99 : 686,548.71 = 316,270.80 : x - Step 2: Convert to fraction form
497,655.99/686,548.71 = 316,270.80/x - Step 3: Cross multiply
497,655.99x = 686,548.71 × 316,270.80 - Step 4: Simplify right side
497,655.99x = 217,135,309,750.67 - Step 5: Solve for x
x = 217,135,309,750.67/497,655.99 - Step 6: Final answer
x = 436,316.08
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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.