Finding the Fourth Proportional to 579,357.41, 869,276.07 and 312,804.63
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Solution
The fourth proportional to 579,357.41, 869,276.07 and 312,804.63 is: 469,336.50
Step by Step Solution
- Step 1: Write the proportion equation
579,357.41 : 869,276.07 = 312,804.63 : x - Step 2: Convert to fraction form
579,357.41/869,276.07 = 312,804.63/x - Step 3: Cross multiply
579,357.41x = 869,276.07 × 312,804.63 - Step 4: Simplify right side
579,357.41x = 271,913,579,444.20 - Step 5: Solve for x
x = 271,913,579,444.20/579,357.41 - Step 6: Final answer
x = 469,336.50
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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.