Finding the Fourth Proportional to 872,462.28, 1,203,986.08 and 485,274
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Solution
The fourth proportional to 872,462.28, 1,203,986.08 and 485,274 is: 669,671.52
Step by Step Solution
- Step 1: Write the proportion equation
872,462.28 : 1,203,986.08 = 485,274 : x - Step 2: Convert to fraction form
872,462.28/1,203,986.08 = 485,274/x - Step 3: Cross multiply
872,462.28x = 1,203,986.08 × 485,274 - Step 4: Simplify right side
872,462.28x = 584,263,140,985.92 - Step 5: Solve for x
x = 584,263,140,985.92/872,462.28 - Step 6: Final answer
x = 669,671.52
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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.