Finding the Fourth Proportional to 838,811.98, 1,157,573.70 and 456,838.42
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Solution
The fourth proportional to 838,811.98, 1,157,573.70 and 456,838.42 is: 630,444.19
Step by Step Solution
- Step 1: Write the proportion equation
838,811.98 : 1,157,573.70 = 456,838.42 : x - Step 2: Convert to fraction form
838,811.98/1,157,573.70 = 456,838.42/x - Step 3: Cross multiply
838,811.98x = 1,157,573.70 × 456,838.42 - Step 4: Simplify right side
838,811.98x = 528,824,140,141.55 - Step 5: Solve for x
x = 528,824,140,141.55/838,811.98 - Step 6: Final answer
x = 630,444.19
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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.