Finding the Fourth Proportional to 2,153,316.90, 3,228,420.15 and 1,206,977.70
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Solution
The fourth proportional to 2,153,316.90, 3,228,420.15 and 1,206,977.70 is: 1,809,594.83
Step by Step Solution
- Step 1: Write the proportion equation
2,153,316.90 : 3,228,420.15 = 1,206,977.70 : x - Step 2: Convert to fraction form
2,153,316.90/3,228,420.15 = 1,206,977.70/x - Step 3: Cross multiply
2,153,316.90x = 3,228,420.15 × 1,206,977.70 - Step 4: Simplify right side
2,153,316.90x = 3,896,631,127,280.66 - Step 5: Solve for x
x = 3,896,631,127,280.66/2,153,316.90 - Step 6: Final answer
x = 1,809,594.83
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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.