Finding the Fourth Proportional to 747,670.80, 1,031,772.44 and 425,373.96
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Solution
The fourth proportional to 747,670.80, 1,031,772.44 and 425,373.96 is: 587,008.52
Step by Step Solution
- Step 1: Write the proportion equation
747,670.80 : 1,031,772.44 = 425,373.96 : x - Step 2: Convert to fraction form
747,670.80/1,031,772.44 = 425,373.96/x - Step 3: Cross multiply
747,670.80x = 1,031,772.44 × 425,373.96 - Step 4: Simplify right side
747,670.80x = 438,889,128,621.66 - Step 5: Solve for x
x = 438,889,128,621.66/747,670.80 - Step 6: Final answer
x = 587,008.52
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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.