Finding the Fourth Proportional to 1,018,926.20, 1,528,340.70 and 344,941.40
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Solution
The fourth proportional to 1,018,926.20, 1,528,340.70 and 344,941.40 is: 517,395.65
Step by Step Solution
- Step 1: Write the proportion equation
1,018,926.20 : 1,528,340.70 = 344,941.40 : x - Step 2: Convert to fraction form
1,018,926.20/1,528,340.70 = 344,941.40/x - Step 3: Cross multiply
1,018,926.20x = 1,528,340.70 × 344,941.40 - Step 4: Simplify right side
1,018,926.20x = 527,187,980,734.98 - Step 5: Solve for x
x = 527,187,980,734.98/1,018,926.20 - Step 6: Final answer
x = 517,395.65
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1.5x scale
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.