Finding the Fourth Proportional to 3,210,338.74, 4,815,460.23 and 781,510.18
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Solution
The fourth proportional to 3,210,338.74, 4,815,460.23 and 781,510.18 is: 1,172,253.61
Step by Step Solution
- Step 1: Write the proportion equation
3,210,338.74 : 4,815,460.23 = 781,510.18 : x - Step 2: Convert to fraction form
3,210,338.74/4,815,460.23 = 781,510.18/x - Step 3: Cross multiply
3,210,338.74x = 4,815,460.23 × 781,510.18 - Step 4: Simplify right side
3,210,338.74x = 3,763,331,191,130.14 - Step 5: Solve for x
x = 3,763,331,191,130.14/3,210,338.74 - Step 6: Final answer
x = 1,172,253.61
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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.