Finding the Fourth Proportional to 903,141.05, 1,246,139.55 and 520,946.39
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Solution
The fourth proportional to 903,141.05, 1,246,139.55 and 520,946.39 is: 718,793.48
Step by Step Solution
- Step 1: Write the proportion equation
903,141.05 : 1,246,139.55 = 520,946.39 : x - Step 2: Convert to fraction form
903,141.05/1,246,139.55 = 520,946.39/x - Step 3: Cross multiply
903,141.05x = 1,246,139.55 × 520,946.39 - Step 4: Simplify right side
903,141.05x = 649,171,893,778.03 - Step 5: Solve for x
x = 649,171,893,778.03/903,141.05 - Step 6: Final answer
x = 718,793.48
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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.