Finding the Fourth Proportional to 771,784.34, 1,064,723.12 and 465,689.99
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Solution
The fourth proportional to 771,784.34, 1,064,723.12 and 465,689.99 is: 642,447.48
Step by Step Solution
- Step 1: Write the proportion equation
771,784.34 : 1,064,723.12 = 465,689.99 : x - Step 2: Convert to fraction form
771,784.34/1,064,723.12 = 465,689.99/x - Step 3: Cross multiply
771,784.34x = 1,064,723.12 × 465,689.99 - Step 4: Simplify right side
771,784.34x = 495,830,899,438.93 - Step 5: Solve for x
x = 495,830,899,438.93/771,784.34 - Step 6: Final answer
x = 642,447.48
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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.