Finding the Third Proportional to 391,909.50 and 572,742.09
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Solution
The third proportional to 391,909.50 and 572,742.09 is: 837,013.41
Step by Step Solution
- Step 1: Write the proportion equation
391,909.50 : 572,742.09 = 572,742.09 : x - Step 2: Convert to fraction form
391,909.50/572,742.09 = 572,742.09/x - Step 3: Cross multiply
391,909.50x = 572,742.09 × 572,742.09 - Step 4: Simplify right side
391,909.50x = 328,033,505,953.13 - Step 5: Solve for x
x = 328,033,505,953.13/391,909.50 - Step 6: Final answer
x = 837,013.41
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These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.