Finding the Fourth Proportional to 2,159,482.13, 2,980,085.36 and 1,254,122.45
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Solution
The fourth proportional to 2,159,482.13, 2,980,085.36 and 1,254,122.45 is: 1,730,688.99
Step by Step Solution
- Step 1: Write the proportion equation
2,159,482.13 : 2,980,085.36 = 1,254,122.45 : x - Step 2: Convert to fraction form
2,159,482.13/2,980,085.36 = 1,254,122.45/x - Step 3: Cross multiply
2,159,482.13x = 2,980,085.36 × 1,254,122.45 - Step 4: Simplify right side
2,159,482.13x = 3,737,391,952,892.33 - Step 5: Solve for x
x = 3,737,391,952,892.33/2,159,482.13 - Step 6: Final answer
x = 1,730,688.99
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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.