Finding the Fourth Proportional to 487,688.99, 731,459.56 and 132,730.67
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Solution
The fourth proportional to 487,688.99, 731,459.56 and 132,730.67 is: 199,075.88
Step by Step Solution
- Step 1: Write the proportion equation
487,688.99 : 731,459.56 = 132,730.67 : x - Step 2: Convert to fraction form
487,688.99/731,459.56 = 132,730.67/x - Step 3: Cross multiply
487,688.99x = 731,459.56 × 132,730.67 - Step 4: Simplify right side
487,688.99x = 97,087,113,819.41 - Step 5: Solve for x
x = 97,087,113,819.41/487,688.99 - Step 6: Final answer
x = 199,075.88
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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.