Finding the Fourth Proportional to 578,027.80, 867,041.70 and 438,059.80
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Solution
The fourth proportional to 578,027.80, 867,041.70 and 438,059.80 is: 657,089.70
Step by Step Solution
- Step 1: Write the proportion equation
578,027.80 : 867,041.70 = 438,059.80 : x - Step 2: Convert to fraction form
578,027.80/867,041.70 = 438,059.80/x - Step 3: Cross multiply
578,027.80x = 867,041.70 × 438,059.80 - Step 4: Simplify right side
578,027.80x = 379,816,113,693.66 - Step 5: Solve for x
x = 379,816,113,693.66/578,027.80 - Step 6: Final answer
x = 657,089.70
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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.