Finding the Fourth Proportional to 549,101.80, 823,652.70 and 312,905.80
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Solution
The fourth proportional to 549,101.80, 823,652.70 and 312,905.80 is: 469,358.70
Step by Step Solution
- Step 1: Write the proportion equation
549,101.80 : 823,652.70 = 312,905.80 : x - Step 2: Convert to fraction form
549,101.80/823,652.70 = 312,905.80/x - Step 3: Cross multiply
549,101.80x = 823,652.70 × 312,905.80 - Step 4: Simplify right side
549,101.80x = 257,725,707,015.66 - Step 5: Solve for x
x = 257,725,707,015.66/549,101.80 - Step 6: Final answer
x = 469,358.70
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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.