Finding the Fourth Proportional to 742,368.24, 1,024,453.98 and 420,072.48
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Solution
The fourth proportional to 742,368.24, 1,024,453.98 and 420,072.48 is: 579,691.99
Step by Step Solution
- Step 1: Write the proportion equation
742,368.24 : 1,024,453.98 = 420,072.48 : x - Step 2: Convert to fraction form
742,368.24/1,024,453.98 = 420,072.48/x - Step 3: Cross multiply
742,368.24x = 1,024,453.98 × 420,072.48 - Step 4: Simplify right side
742,368.24x = 430,344,924,024.47 - Step 5: Solve for x
x = 430,344,924,024.47/742,368.24 - Step 6: Final answer
x = 579,691.99
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1.5x scale
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.