Finding the Fourth Proportional to 669,970.36, 1,004,390.34 and 290,605.48
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Solution
The fourth proportional to 669,970.36, 1,004,390.34 and 290,605.48 is: 435,663.07
Step by Step Solution
- Step 1: Write the proportion equation
669,970.36 : 1,004,390.34 = 290,605.48 : x - Step 2: Convert to fraction form
669,970.36/1,004,390.34 = 290,605.48/x - Step 3: Cross multiply
669,970.36x = 1,004,390.34 × 290,605.48 - Step 4: Simplify right side
669,970.36x = 291,881,342,367.74 - Step 5: Solve for x
x = 291,881,342,367.74/669,970.36 - Step 6: Final answer
x = 435,663.07
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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.