Finding the Fourth Proportional to 929,134.08, 1,280,847.36 and 656,721.36
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Solution
The fourth proportional to 929,134.08, 1,280,847.36 and 656,721.36 is: 905,315.86
Step by Step Solution
- Step 1: Write the proportion equation
929,134.08 : 1,280,847.36 = 656,721.36 : x - Step 2: Convert to fraction form
929,134.08/1,280,847.36 = 656,721.36/x - Step 3: Cross multiply
929,134.08x = 1,280,847.36 × 656,721.36 - Step 4: Simplify right side
929,134.08x = 841,159,820,211.61 - Step 5: Solve for x
x = 841,159,820,211.61/929,134.08 - Step 6: Final answer
x = 905,315.86
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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.