Finding the Fourth Proportional to 879,486.80, 1,319,230.20 and 524,901.20
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Solution
The fourth proportional to 879,486.80, 1,319,230.20 and 524,901.20 is: 787,351.80
Step by Step Solution
- Step 1: Write the proportion equation
879,486.80 : 1,319,230.20 = 524,901.20 : x - Step 2: Convert to fraction form
879,486.80/1,319,230.20 = 524,901.20/x - Step 3: Cross multiply
879,486.80x = 1,319,230.20 × 524,901.20 - Step 4: Simplify right side
879,486.80x = 692,465,515,056.24 - Step 5: Solve for x
x = 692,465,515,056.24/879,486.80 - Step 6: Final answer
x = 787,351.80
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1.5x scale
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.