Finding the Fourth Proportional to 690,848.20, 1,036,272.30 and 241,419.70
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Solution
The fourth proportional to 690,848.20, 1,036,272.30 and 241,419.70 is: 362,129.55
Step by Step Solution
- Step 1: Write the proportion equation
690,848.20 : 1,036,272.30 = 241,419.70 : x - Step 2: Convert to fraction form
690,848.20/1,036,272.30 = 241,419.70/x - Step 3: Cross multiply
690,848.20x = 1,036,272.30 × 241,419.70 - Step 4: Simplify right side
690,848.20x = 250,176,547,784.31 - Step 5: Solve for x
x = 250,176,547,784.31/690,848.20 - Step 6: Final answer
x = 362,129.55
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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.