Finding the Fourth Proportional to 1,154,762.08, 1,593,507.20 and 638,486.20
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Solution
The fourth proportional to 1,154,762.08, 1,593,507.20 and 638,486.20 is: 881,075.31
Step by Step Solution
- Step 1: Write the proportion equation
1,154,762.08 : 1,593,507.20 = 638,486.20 : x - Step 2: Convert to fraction form
1,154,762.08/1,593,507.20 = 638,486.20/x - Step 3: Cross multiply
1,154,762.08x = 1,593,507.20 × 638,486.20 - Step 4: Simplify right side
1,154,762.08x = 1,017,432,356,800.64 - Step 5: Solve for x
x = 1,017,432,356,800.64/1,154,762.08 - Step 6: Final answer
x = 881,075.31
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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.