Finding the Fourth Proportional to 476,487.99, 657,574.88 and 285,497.28
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Solution
The fourth proportional to 476,487.99, 657,574.88 and 285,497.28 is: 393,999.10
Step by Step Solution
- Step 1: Write the proportion equation
476,487.99 : 657,574.88 = 285,497.28 : x - Step 2: Convert to fraction form
476,487.99/657,574.88 = 285,497.28/x - Step 3: Cross multiply
476,487.99x = 657,574.88 × 285,497.28 - Step 4: Simplify right side
476,487.99x = 187,735,838,208.84 - Step 5: Solve for x
x = 187,735,838,208.84/476,487.99 - Step 6: Final answer
x = 393,999.10
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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.