Finding the Fourth Proportional to 549,125.80, 823,688.70 and 438,533.80
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Solution
The fourth proportional to 549,125.80, 823,688.70 and 438,533.80 is: 657,800.70
Step by Step Solution
- Step 1: Write the proportion equation
549,125.80 : 823,688.70 = 438,533.80 : x - Step 2: Convert to fraction form
549,125.80/823,688.70 = 438,533.80/x - Step 3: Cross multiply
549,125.80x = 823,688.70 × 438,533.80 - Step 4: Simplify right side
549,125.80x = 361,215,335,628.06 - Step 5: Solve for x
x = 361,215,335,628.06/549,125.80 - Step 6: Final answer
x = 657,800.70
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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.