Finding the Fourth Proportional to 518,848.58, 778,423.56 and 215,187.05
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Solution
The fourth proportional to 518,848.58, 778,423.56 and 215,187.05 is: 322,843.07
Step by Step Solution
- Step 1: Write the proportion equation
518,848.58 : 778,423.56 = 215,187.05 : x - Step 2: Convert to fraction form
518,848.58/778,423.56 = 215,187.05/x - Step 3: Cross multiply
518,848.58x = 778,423.56 × 215,187.05 - Step 4: Simplify right side
518,848.58x = 167,506,665,634.78 - Step 5: Solve for x
x = 167,506,665,634.78/518,848.58 - Step 6: Final answer
x = 322,843.07
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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.