Finding the Fourth Proportional to 517,941.68, 714,827.64 and 291,631.28
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Solution
The fourth proportional to 517,941.68, 714,827.64 and 291,631.28 is: 402,489.52
Step by Step Solution
- Step 1: Write the proportion equation
517,941.68 : 714,827.64 = 291,631.28 : x - Step 2: Convert to fraction form
517,941.68/714,827.64 = 291,631.28/x - Step 3: Cross multiply
517,941.68x = 714,827.64 × 291,631.28 - Step 4: Simplify right side
517,941.68x = 208,466,099,632.58 - Step 5: Solve for x
x = 208,466,099,632.58/517,941.68 - Step 6: Final answer
x = 402,489.52
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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.