Finding the Fourth Proportional to 817,449.84, 1,226,382.12 and 256,489.20
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Solution
The fourth proportional to 817,449.84, 1,226,382.12 and 256,489.20 is: 384,798.86
Step by Step Solution
- Step 1: Write the proportion equation
817,449.84 : 1,226,382.12 = 256,489.20 : x - Step 2: Convert to fraction form
817,449.84/1,226,382.12 = 256,489.20/x - Step 3: Cross multiply
817,449.84x = 1,226,382.12 × 256,489.20 - Step 4: Simplify right side
817,449.84x = 314,553,768,853.10 - Step 5: Solve for x
x = 314,553,768,853.10/817,449.84 - Step 6: Final answer
x = 384,798.86
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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.