Finding the Fourth Proportional to 3,506,918.40, 5,262,451.20 and 2,557,900.80
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Solution
The fourth proportional to 3,506,918.40, 5,262,451.20 and 2,557,900.80 is: 3,838,363.66
Step by Step Solution
- Step 1: Write the proportion equation
3,506,918.40 : 5,262,451.20 = 2,557,900.80 : x - Step 2: Convert to fraction form
3,506,918.40/5,262,451.20 = 2,557,900.80/x - Step 3: Cross multiply
3,506,918.40x = 5,262,451.20 × 2,557,900.80 - Step 4: Simplify right side
3,506,918.40x = 13,460,828,134,440.96 - Step 5: Solve for x
x = 13,460,828,134,440.96/3,506,918.40 - Step 6: Final answer
x = 3,838,363.66
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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.