Finding the Fourth Proportional to 868,128.62, 1,197,726.06 and 505,474.80
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Solution
The fourth proportional to 868,128.62, 1,197,726.06 and 505,474.80 is: 697,385.53
Step by Step Solution
- Step 1: Write the proportion equation
868,128.62 : 1,197,726.06 = 505,474.80 : x - Step 2: Convert to fraction form
868,128.62/1,197,726.06 = 505,474.80/x - Step 3: Cross multiply
868,128.62x = 1,197,726.06 × 505,474.80 - Step 4: Simplify right side
868,128.62x = 605,420,340,633.29 - Step 5: Solve for x
x = 605,420,340,633.29/868,128.62 - Step 6: Final answer
x = 697,385.53
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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.