Finding the Fourth Proportional to 698,374.99, 963,726.40 and 408,013.48
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Solution
The fourth proportional to 698,374.99, 963,726.40 and 408,013.48 is: 563,040.44
Step by Step Solution
- Step 1: Write the proportion equation
698,374.99 : 963,726.40 = 408,013.48 : x - Step 2: Convert to fraction form
698,374.99/963,726.40 = 408,013.48/x - Step 3: Cross multiply
698,374.99x = 963,726.40 × 408,013.48 - Step 4: Simplify right side
698,374.99x = 393,213,362,231.87 - Step 5: Solve for x
x = 393,213,362,231.87/698,374.99 - Step 6: Final answer
x = 563,040.44
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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.