Finding the Fourth Proportional to 516,454.79, 774,726.83 and 142,477.79
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Solution
The fourth proportional to 516,454.79, 774,726.83 and 142,477.79 is: 213,728.99
Step by Step Solution
- Step 1: Write the proportion equation
516,454.79 : 774,726.83 = 142,477.79 : x - Step 2: Convert to fraction form
516,454.79/774,726.83 = 142,477.79/x - Step 3: Cross multiply
516,454.79x = 774,726.83 × 142,477.79 - Step 4: Simplify right side
516,454.79x = 110,381,362,006.08 - Step 5: Solve for x
x = 110,381,362,006.08/516,454.79 - Step 6: Final answer
x = 213,728.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.