Finding the Fourth Proportional to 3,188,005.76, 4,779,177.32 and 1,242,283.84
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Solution
The fourth proportional to 3,188,005.76, 4,779,177.32 and 1,242,283.84 is: 1,862,322.47
Step by Step Solution
- Step 1: Write the proportion equation
3,188,005.76 : 4,779,177.32 = 1,242,283.84 : x - Step 2: Convert to fraction form
3,188,005.76/4,779,177.32 = 1,242,283.84/x - Step 3: Cross multiply
3,188,005.76x = 4,779,177.32 × 1,242,283.84 - Step 4: Simplify right side
3,188,005.76x = 5,937,094,753,130.51 - Step 5: Solve for x
x = 5,937,094,753,130.51/3,188,005.76 - Step 6: Final answer
x = 1,862,322.47
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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.