Finding the Fourth Proportional to 1,604,643.84, 2,214,432.72 and 879,485.76
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Solution
The fourth proportional to 1,604,643.84, 2,214,432.72 and 879,485.76 is: 1,213,703.62
Step by Step Solution
- Step 1: Write the proportion equation
1,604,643.84 : 2,214,432.72 = 879,485.76 : x - Step 2: Convert to fraction form
1,604,643.84/2,214,432.72 = 879,485.76/x - Step 3: Cross multiply
1,604,643.84x = 2,214,432.72 × 879,485.76 - Step 4: Simplify right side
1,604,643.84x = 1,947,562,043,718.07 - Step 5: Solve for x
x = 1,947,562,043,718.07/1,604,643.84 - Step 6: Final answer
x = 1,213,703.62
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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.