Finding the Fourth Proportional to 2,860,720.40, 4,294,830.84 and 1,918,308.08
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Solution
The fourth proportional to 2,860,720.40, 4,294,830.84 and 1,918,308.08 is: 2,879,976.91
Step by Step Solution
- Step 1: Write the proportion equation
2,860,720.40 : 4,294,830.84 = 1,918,308.08 : x - Step 2: Convert to fraction form
2,860,720.40/4,294,830.84 = 1,918,308.08/x - Step 3: Cross multiply
2,860,720.40x = 4,294,830.84 × 1,918,308.08 - Step 4: Simplify right side
2,860,720.40x = 8,238,808,702,605.19 - Step 5: Solve for x
x = 8,238,808,702,605.19/2,860,720.40 - Step 6: Final answer
x = 2,879,976.91
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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.