Finding the Fourth Proportional to 1,148,486.99, 1,584,885.08 and 639,178.43
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Solution
The fourth proportional to 1,148,486.99, 1,584,885.08 and 639,178.43 is: 882,051.22
Step by Step Solution
- Step 1: Write the proportion equation
1,148,486.99 : 1,584,885.08 = 639,178.43 : x - Step 2: Convert to fraction form
1,148,486.99/1,584,885.08 = 639,178.43/x - Step 3: Cross multiply
1,148,486.99x = 1,584,885.08 × 639,178.43 - Step 4: Simplify right side
1,148,486.99x = 1,013,024,350,838.35 - Step 5: Solve for x
x = 1,013,024,350,838.35/1,148,486.99 - Step 6: Final answer
x = 882,051.22
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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.