Finding the Fourth Proportional to 478,439.98, 717,725.58 and 141,507.12
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Solution
The fourth proportional to 478,439.98, 717,725.58 and 141,507.12 is: 212,280.09
Step by Step Solution
- Step 1: Write the proportion equation
478,439.98 : 717,725.58 = 141,507.12 : x - Step 2: Convert to fraction form
478,439.98/717,725.58 = 141,507.12/x - Step 3: Cross multiply
478,439.98x = 717,725.58 × 141,507.12 - Step 4: Simplify right side
478,439.98x = 101,563,279,776.13 - Step 5: Solve for x
x = 101,563,279,776.13/478,439.98 - Step 6: Final answer
x = 212,280.09
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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.