Finding the Fourth Proportional to 691,853.70, 1,037,780.55 and 551,885.70
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Solution
The fourth proportional to 691,853.70, 1,037,780.55 and 551,885.70 is: 827,828.55
Step by Step Solution
- Step 1: Write the proportion equation
691,853.70 : 1,037,780.55 = 551,885.70 : x - Step 2: Convert to fraction form
691,853.70/1,037,780.55 = 551,885.70/x - Step 3: Cross multiply
691,853.70x = 1,037,780.55 × 551,885.70 - Step 4: Simplify right side
691,853.70x = 572,736,245,283.14 - Step 5: Solve for x
x = 572,736,245,283.14/691,853.70 - Step 6: Final answer
x = 827,828.55
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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.