Finding the Fourth Proportional to 687,417.60, 1,031,272.20 and 207,662.70
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Solution
The fourth proportional to 687,417.60, 1,031,272.20 and 207,662.70 is: 311,538.09
Step by Step Solution
- Step 1: Write the proportion equation
687,417.60 : 1,031,272.20 = 207,662.70 : x - Step 2: Convert to fraction form
687,417.60/1,031,272.20 = 207,662.70/x - Step 3: Cross multiply
687,417.60x = 1,031,272.20 × 207,662.70 - Step 4: Simplify right side
687,417.60x = 214,156,769,486.94 - Step 5: Solve for x
x = 214,156,769,486.94/687,417.60 - Step 6: Final answer
x = 311,538.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.