Finding the Fourth Proportional to 4,654,537.79, 6,420,587.42 and 2,909,178.14
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Solution
The fourth proportional to 4,654,537.79, 6,420,587.42 and 2,909,178.14 is: 4,012,994.07
Step by Step Solution
- Step 1: Write the proportion equation
4,654,537.79 : 6,420,587.42 = 2,909,178.14 : x - Step 2: Convert to fraction form
4,654,537.79/6,420,587.42 = 2,909,178.14/x - Step 3: Cross multiply
4,654,537.79x = 6,420,587.42 × 2,909,178.14 - Step 4: Simplify right side
4,654,537.79x = 18,678,632,545,651.38 - Step 5: Solve for x
x = 18,678,632,545,651.38/4,654,537.79 - Step 6: Final answer
x = 4,012,994.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.