Finding the Fourth Proportional to 723,539.08, 998,547.06 and 421,726.60
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Solution
The fourth proportional to 723,539.08, 998,547.06 and 421,726.60 is: 582,019.50
Step by Step Solution
- Step 1: Write the proportion equation
723,539.08 : 998,547.06 = 421,726.60 : x - Step 2: Convert to fraction form
723,539.08/998,547.06 = 421,726.60/x - Step 3: Cross multiply
723,539.08x = 998,547.06 × 421,726.60 - Step 4: Simplify right side
723,539.08x = 421,113,856,553.80 - Step 5: Solve for x
x = 421,113,856,553.80/723,539.08 - Step 6: Final answer
x = 582,019.50
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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.