Finding the Fourth Proportional to 687,848.24, 949,184.30 and 381,908.81
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Solution
The fourth proportional to 687,848.24, 949,184.30 and 381,908.81 is: 527,008.46
Step by Step Solution
- Step 1: Write the proportion equation
687,848.24 : 949,184.30 = 381,908.81 : x - Step 2: Convert to fraction form
687,848.24/949,184.30 = 381,908.81/x - Step 3: Cross multiply
687,848.24x = 949,184.30 × 381,908.81 - Step 4: Simplify right side
687,848.24x = 362,501,841,737.76 - Step 5: Solve for x
x = 362,501,841,737.76/687,848.24 - Step 6: Final answer
x = 527,008.46
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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.