Finding the Fourth Proportional to 710,622.68, 980,655.68 and 420,338.53
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Solution
The fourth proportional to 710,622.68, 980,655.68 and 420,338.53 is: 580,065.02
Step by Step Solution
- Step 1: Write the proportion equation
710,622.68 : 980,655.68 = 420,338.53 : x - Step 2: Convert to fraction form
710,622.68/980,655.68 = 420,338.53/x - Step 3: Cross multiply
710,622.68x = 980,655.68 × 420,338.53 - Step 4: Simplify right side
710,622.68x = 412,207,359,962.38 - Step 5: Solve for x
x = 412,207,359,962.38/710,622.68 - Step 6: Final answer
x = 580,065.02
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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.