Finding the Fourth Proportional to 709,602.91, 1,064,874.48 and 389,977.99
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Solution
The fourth proportional to 709,602.91, 1,064,874.48 and 389,977.99 is: 585,225.35
Step by Step Solution
- Step 1: Write the proportion equation
709,602.91 : 1,064,874.48 = 389,977.99 : x - Step 2: Convert to fraction form
709,602.91/1,064,874.48 = 389,977.99/x - Step 3: Cross multiply
709,602.91x = 1,064,874.48 × 389,977.99 - Step 4: Simplify right side
709,602.91x = 415,277,609,312.70 - Step 5: Solve for x
x = 415,277,609,312.70/709,602.91 - Step 6: Final answer
x = 585,225.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.