Finding the Fourth Proportional to 586,579.14, 809,479.20 and 318,307.14
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Solution
The fourth proportional to 586,579.14, 809,479.20 and 318,307.14 is: 439,263.85
Step by Step Solution
- Step 1: Write the proportion equation
586,579.14 : 809,479.20 = 318,307.14 : x - Step 2: Convert to fraction form
586,579.14/809,479.20 = 318,307.14/x - Step 3: Cross multiply
586,579.14x = 809,479.20 × 318,307.14 - Step 4: Simplify right side
586,579.14x = 257,663,009,041.49 - Step 5: Solve for x
x = 257,663,009,041.49/586,579.14 - Step 6: Final answer
x = 439,263.85
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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.