Finding the Fourth Proportional to 645,140.80, 966,544.80 and 551,828.80
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Solution
The fourth proportional to 645,140.80, 966,544.80 and 551,828.80 is: 826,745.51
Step by Step Solution
- Step 1: Write the proportion equation
645,140.80 : 966,544.80 = 551,828.80 : x - Step 2: Convert to fraction form
645,140.80/966,544.80 = 551,828.80/x - Step 3: Cross multiply
645,140.80x = 966,544.80 × 551,828.80 - Step 4: Simplify right side
645,140.80x = 533,367,257,130.24 - Step 5: Solve for x
x = 533,367,257,130.24/645,140.80 - Step 6: Final answer
x = 826,745.51
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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.