Finding the Fourth Proportional to 879,695.19, 1,213,618.47 and 535,254.99
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Solution
The fourth proportional to 879,695.19, 1,213,618.47 and 535,254.99 is: 738,432.30
Step by Step Solution
- Step 1: Write the proportion equation
879,695.19 : 1,213,618.47 = 535,254.99 : x - Step 2: Convert to fraction form
879,695.19/1,213,618.47 = 535,254.99/x - Step 3: Cross multiply
879,695.19x = 1,213,618.47 × 535,254.99 - Step 4: Simplify right side
879,695.19x = 649,595,342,023.67 - Step 5: Solve for x
x = 649,595,342,023.67/879,695.19 - Step 6: Final answer
x = 738,432.30
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1.5x scale
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.