Finding the Fourth Proportional to 905,018.42, 1,248,964.68 and 517,955.34
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Solution
The fourth proportional to 905,018.42, 1,248,964.68 and 517,955.34 is: 714,800.84
Step by Step Solution
- Step 1: Write the proportion equation
905,018.42 : 1,248,964.68 = 517,955.34 : x - Step 2: Convert to fraction form
905,018.42/1,248,964.68 = 517,955.34/x - Step 3: Cross multiply
905,018.42x = 1,248,964.68 × 517,955.34 - Step 4: Simplify right side
905,018.42x = 646,907,925,477.39 - Step 5: Solve for x
x = 646,907,925,477.39/905,018.42 - Step 6: Final answer
x = 714,800.84
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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.