Finding the Fourth Proportional to 1,386,655.84, 2,079,983.80 and 375,777.79
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Solution
The fourth proportional to 1,386,655.84, 2,079,983.80 and 375,777.79 is: 563,666.70
Step by Step Solution
- Step 1: Write the proportion equation
1,386,655.84 : 2,079,983.80 = 375,777.79 : x - Step 2: Convert to fraction form
1,386,655.84/2,079,983.80 = 375,777.79/x - Step 3: Cross multiply
1,386,655.84x = 2,079,983.80 × 375,777.79 - Step 4: Simplify right side
1,386,655.84x = 781,611,715,599.80 - Step 5: Solve for x
x = 781,611,715,599.80/1,386,655.84 - Step 6: Final answer
x = 563,666.70
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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.