Finding the Fourth Proportional to 771,786.55, 1,064,726.17 and 465,692.21
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Solution
The fourth proportional to 771,786.55, 1,064,726.17 and 465,692.21 is: 642,450.54
Step by Step Solution
- Step 1: Write the proportion equation
771,786.55 : 1,064,726.17 = 465,692.21 : x - Step 2: Convert to fraction form
771,786.55/1,064,726.17 = 465,692.21/x - Step 3: Cross multiply
771,786.55x = 1,064,726.17 × 465,692.21 - Step 4: Simplify right side
771,786.55x = 495,834,683,152.14 - Step 5: Solve for x
x = 495,834,683,152.14/771,786.55 - Step 6: Final answer
x = 642,450.54
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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.