Finding the Fourth Proportional to 971,423.94, 1,340,573.76 and 535,857.96
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Solution
The fourth proportional to 971,423.94, 1,340,573.76 and 535,857.96 is: 739,488.80
Step by Step Solution
- Step 1: Write the proportion equation
971,423.94 : 1,340,573.76 = 535,857.96 : x - Step 2: Convert to fraction form
971,423.94/1,340,573.76 = 535,857.96/x - Step 3: Cross multiply
971,423.94x = 1,340,573.76 × 535,857.96 - Step 4: Simplify right side
971,423.94x = 718,357,120,263.13 - Step 5: Solve for x
x = 718,357,120,263.13/971,423.94 - Step 6: Final answer
x = 739,488.80
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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.