Finding the Fourth Proportional to 722,471.77, 997,011.11 and 400,202.74
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Solution
The fourth proportional to 722,471.77, 997,011.11 and 400,202.74 is: 552,279.82
Step by Step Solution
- Step 1: Write the proportion equation
722,471.77 : 997,011.11 = 400,202.74 : x - Step 2: Convert to fraction form
722,471.77/997,011.11 = 400,202.74/x - Step 3: Cross multiply
722,471.77x = 997,011.11 × 400,202.74 - Step 4: Simplify right side
722,471.77x = 399,006,574,671.03 - Step 5: Solve for x
x = 399,006,574,671.03/722,471.77 - Step 6: Final answer
x = 552,279.82
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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.