Finding the Fourth Proportional to 722,867.36, 997,562.84 and 400,582.80
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Solution
The fourth proportional to 722,867.36, 997,562.84 and 400,582.80 is: 552,807.53
Step by Step Solution
- Step 1: Write the proportion equation
722,867.36 : 997,562.84 = 400,582.80 : x - Step 2: Convert to fraction form
722,867.36/997,562.84 = 400,582.80/x - Step 3: Cross multiply
722,867.36x = 997,562.84 × 400,582.80 - Step 4: Simplify right side
722,867.36x = 399,606,513,620.24 - Step 5: Solve for x
x = 399,606,513,620.24/722,867.36 - Step 6: Final answer
x = 552,807.53
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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.