Finding the Fourth Proportional to 826,316.76, 1,236,817.88 and 426,412.84
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Solution
The fourth proportional to 826,316.76, 1,236,817.88 and 426,412.84 is: 638,248.01
Step by Step Solution
- Step 1: Write the proportion equation
826,316.76 : 1,236,817.88 = 426,412.84 : x - Step 2: Convert to fraction form
826,316.76/1,236,817.88 = 426,412.84/x - Step 3: Cross multiply
826,316.76x = 1,236,817.88 × 426,412.84 - Step 4: Simplify right side
826,316.76x = 527,395,024,773.58 - Step 5: Solve for x
x = 527,395,024,773.58/826,316.76 - Step 6: Final answer
x = 638,248.01
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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.