Finding the Fourth Proportional to 3,921,746.18, 5,411,170.23 and 2,289,412.76
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Solution
The fourth proportional to 3,921,746.18, 5,411,170.23 and 2,289,412.76 is: 3,158,899.53
Step by Step Solution
- Step 1: Write the proportion equation
3,921,746.18 : 5,411,170.23 = 2,289,412.76 : x - Step 2: Convert to fraction form
3,921,746.18/5,411,170.23 = 2,289,412.76/x - Step 3: Cross multiply
3,921,746.18x = 5,411,170.23 × 2,289,412.76 - Step 4: Simplify right side
3,921,746.18x = 12,388,402,171,094.13 - Step 5: Solve for x
x = 12,388,402,171,094.13/3,921,746.18 - Step 6: Final answer
x = 3,158,899.53
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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.