Finding the Fourth Proportional to 1,879,918.78, 2,594,291.21 and 1,020,479.62
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Solution
The fourth proportional to 1,879,918.78, 2,594,291.21 and 1,020,479.62 is: 1,408,263.66
Step by Step Solution
- Step 1: Write the proportion equation
1,879,918.78 : 2,594,291.21 = 1,020,479.62 : x - Step 2: Convert to fraction form
1,879,918.78/2,594,291.21 = 1,020,479.62/x - Step 3: Cross multiply
1,879,918.78x = 2,594,291.21 × 1,020,479.62 - Step 4: Simplify right side
1,879,918.78x = 2,647,421,308,150.14 - Step 5: Solve for x
x = 2,647,421,308,150.14/1,879,918.78 - Step 6: Final answer
x = 1,408,263.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.