Finding the Fourth Proportional to 708,574.18, 1,062,128.79 and 329,185.37
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Solution
The fourth proportional to 708,574.18, 1,062,128.79 and 329,185.37 is: 493,437.76
Step by Step Solution
- Step 1: Write the proportion equation
708,574.18 : 1,062,128.79 = 329,185.37 : x - Step 2: Convert to fraction form
708,574.18/1,062,128.79 = 329,185.37/x - Step 3: Cross multiply
708,574.18x = 1,062,128.79 × 329,185.37 - Step 4: Simplify right side
708,574.18x = 349,637,258,723.80 - Step 5: Solve for x
x = 349,637,258,723.80/708,574.18 - Step 6: Final answer
x = 493,437.76
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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.