Finding the Fourth Proportional to 903,280.82, 1,246,437.70 and 521,430.62
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Solution
The fourth proportional to 903,280.82, 1,246,437.70 and 521,430.62 is: 719,522.40
Step by Step Solution
- Step 1: Write the proportion equation
903,280.82 : 1,246,437.70 = 521,430.62 : x - Step 2: Convert to fraction form
903,280.82/1,246,437.70 = 521,430.62/x - Step 3: Cross multiply
903,280.82x = 1,246,437.70 × 521,430.62 - Step 4: Simplify right side
903,280.82x = 649,930,782,702.37 - Step 5: Solve for x
x = 649,930,782,702.37/903,280.82 - Step 6: Final answer
x = 719,522.40
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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.