Finding the Fourth Proportional to 1,130,842.04, 1,696,345.41 and 420,869.84
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Solution
The fourth proportional to 1,130,842.04, 1,696,345.41 and 420,869.84 is: 631,335.41
Step by Step Solution
- Step 1: Write the proportion equation
1,130,842.04 : 1,696,345.41 = 420,869.84 : x - Step 2: Convert to fraction form
1,130,842.04/1,696,345.41 = 420,869.84/x - Step 3: Cross multiply
1,130,842.04x = 1,696,345.41 × 420,869.84 - Step 4: Simplify right side
1,130,842.04x = 713,940,621,291.44 - Step 5: Solve for x
x = 713,940,621,291.44/1,130,842.04 - Step 6: Final answer
x = 631,335.41
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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.