Finding the Fourth Proportional to 1,910,478.32, 2,636,477.20 and 1,039,331.99
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Solution
The fourth proportional to 1,910,478.32, 2,636,477.20 and 1,039,331.99 is: 1,434,287.47
Step by Step Solution
- Step 1: Write the proportion equation
1,910,478.32 : 2,636,477.20 = 1,039,331.99 : x - Step 2: Convert to fraction form
1,910,478.32/2,636,477.20 = 1,039,331.99/x - Step 3: Cross multiply
1,910,478.32x = 2,636,477.20 × 1,039,331.99 - Step 4: Simplify right side
1,910,478.32x = 2,740,175,106,051.58 - Step 5: Solve for x
x = 2,740,175,106,051.58/1,910,478.32 - Step 6: Final answer
x = 1,434,287.47
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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.