Finding the Fourth Proportional to 1,012,381.63, 1,397,115.80 and 559,701.79
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Solution
The fourth proportional to 1,012,381.63, 1,397,115.80 and 559,701.79 is: 772,404.59
Step by Step Solution
- Step 1: Write the proportion equation
1,012,381.63 : 1,397,115.80 = 559,701.79 : x - Step 2: Convert to fraction form
1,012,381.63/1,397,115.80 = 559,701.79/x - Step 3: Cross multiply
1,012,381.63x = 1,397,115.80 × 559,701.79 - Step 4: Simplify right side
1,012,381.63x = 781,968,214,097.28 - Step 5: Solve for x
x = 781,968,214,097.28/1,012,381.63 - Step 6: Final answer
x = 772,404.59
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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.