Finding the Fourth Proportional to 936,516.21, 1,292,076 and 609,680.40
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Solution
The fourth proportional to 936,516.21, 1,292,076 and 609,680.40 is: 841,152.99
Step by Step Solution
- Step 1: Write the proportion equation
936,516.21 : 1,292,076 = 609,680.40 : x - Step 2: Convert to fraction form
936,516.21/1,292,076 = 609,680.40/x - Step 3: Cross multiply
936,516.21x = 1,292,076 × 609,680.40 - Step 4: Simplify right side
936,516.21x = 787,753,412,510.40 - Step 5: Solve for x
x = 787,753,412,510.40/936,516.21 - Step 6: Final answer
x = 841,152.99
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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.