Finding the Fourth Proportional to 905,048.42, 1,248,974.84 and 497,158.54
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Solution
The fourth proportional to 905,048.42, 1,248,974.84 and 497,158.54 is: 686,083.19
Step by Step Solution
- Step 1: Write the proportion equation
905,048.42 : 1,248,974.84 = 497,158.54 : x - Step 2: Convert to fraction form
905,048.42/1,248,974.84 = 497,158.54/x - Step 3: Cross multiply
905,048.42x = 1,248,974.84 × 497,158.54 - Step 4: Simplify right side
905,048.42x = 620,938,506,071.59 - Step 5: Solve for x
x = 620,938,506,071.59/905,048.42 - Step 6: Final answer
x = 686,083.19
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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.