Finding the Fourth Proportional to 1,564,922.16, 2,159,620.11 and 876,588.21
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Solution
The fourth proportional to 1,564,922.16, 2,159,620.11 and 876,588.21 is: 1,209,707.15
Step by Step Solution
- Step 1: Write the proportion equation
1,564,922.16 : 2,159,620.11 = 876,588.21 : x - Step 2: Convert to fraction form
1,564,922.16/2,159,620.11 = 876,588.21/x - Step 3: Cross multiply
1,564,922.16x = 2,159,620.11 × 876,588.21 - Step 4: Simplify right side
1,564,922.16x = 1,893,097,526,504.90 - Step 5: Solve for x
x = 1,893,097,526,504.90/1,564,922.16 - Step 6: Final answer
x = 1,209,707.15
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1.5x scale
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.