Finding the Fourth Proportional to 918,207.20, 1,377,310.80 and 544,959.20
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Solution
The fourth proportional to 918,207.20, 1,377,310.80 and 544,959.20 is: 817,438.80
Step by Step Solution
- Step 1: Write the proportion equation
918,207.20 : 1,377,310.80 = 544,959.20 : x - Step 2: Convert to fraction form
918,207.20/1,377,310.80 = 544,959.20/x - Step 3: Cross multiply
918,207.20x = 1,377,310.80 × 544,959.20 - Step 4: Simplify right side
918,207.20x = 750,578,191,719.36 - Step 5: Solve for x
x = 750,578,191,719.36/918,207.20 - Step 6: Final answer
x = 817,438.80
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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.