Finding the Fourth Proportional to 719,116.76, 1,078,339.80 and 213,492.08
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Solution
The fourth proportional to 719,116.76, 1,078,339.80 and 213,492.08 is: 320,138.56
Step by Step Solution
- Step 1: Write the proportion equation
719,116.76 : 1,078,339.80 = 213,492.08 : x - Step 2: Convert to fraction form
719,116.76/1,078,339.80 = 213,492.08/x - Step 3: Cross multiply
719,116.76x = 1,078,339.80 × 213,492.08 - Step 4: Simplify right side
719,116.76x = 230,217,006,848.78 - Step 5: Solve for x
x = 230,217,006,848.78/719,116.76 - Step 6: Final answer
x = 320,138.56
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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.