Finding the Fourth Proportional to 1,778,987.40, 2,454,000.40 and 1,125,410.65
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Solution
The fourth proportional to 1,778,987.40, 2,454,000.40 and 1,125,410.65 is: 1,552,432.68
Step by Step Solution
- Step 1: Write the proportion equation
1,778,987.40 : 2,454,000.40 = 1,125,410.65 : x - Step 2: Convert to fraction form
1,778,987.40/2,454,000.40 = 1,125,410.65/x - Step 3: Cross multiply
1,778,987.40x = 2,454,000.40 × 1,125,410.65 - Step 4: Simplify right side
1,778,987.40x = 2,761,758,167,367.21 - Step 5: Solve for x
x = 2,761,758,167,367.21/1,778,987.40 - Step 6: Final answer
x = 1,552,432.68
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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.