Finding the Fourth Proportional to 751,781.08, 1,128,633.90 and 645,842.80
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Solution
The fourth proportional to 751,781.08, 1,128,633.90 and 645,842.80 is: 969,590.88
Step by Step Solution
- Step 1: Write the proportion equation
751,781.08 : 1,128,633.90 = 645,842.80 : x - Step 2: Convert to fraction form
751,781.08/1,128,633.90 = 645,842.80/x - Step 3: Cross multiply
751,781.08x = 1,128,633.90 × 645,842.80 - Step 4: Simplify right side
751,781.08x = 728,920,080,772.67 - Step 5: Solve for x
x = 728,920,080,772.67/751,781.08 - Step 6: Final answer
x = 969,590.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.