Finding the Fourth Proportional to 390,974.94, 586,452.15 and 124,751.70
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Solution
The fourth proportional to 390,974.94, 586,452.15 and 124,751.70 is: 187,124.28
Step by Step Solution
- Step 1: Write the proportion equation
390,974.94 : 586,452.15 = 124,751.70 : x - Step 2: Convert to fraction form
390,974.94/586,452.15 = 124,751.70/x - Step 3: Cross multiply
390,974.94x = 586,452.15 × 124,751.70 - Step 4: Simplify right side
390,974.94x = 73,160,902,681.16 - Step 5: Solve for x
x = 73,160,902,681.16/390,974.94 - Step 6: Final answer
x = 187,124.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.