Finding the Fourth Proportional to 972,392.58, 1,341,969.12 and 542,756.70
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Solution
The fourth proportional to 972,392.58, 1,341,969.12 and 542,756.70 is: 749,041.84
Step by Step Solution
- Step 1: Write the proportion equation
972,392.58 : 1,341,969.12 = 542,756.70 : x - Step 2: Convert to fraction form
972,392.58/1,341,969.12 = 542,756.70/x - Step 3: Cross multiply
972,392.58x = 1,341,969.12 × 542,756.70 - Step 4: Simplify right side
972,392.58x = 728,362,731,073.10 - Step 5: Solve for x
x = 728,362,731,073.10/972,392.58 - Step 6: Final answer
x = 749,041.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.