Finding the Fourth Proportional to 1,971,128.40, 2,952,545.40 and 1,639,352.40
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Solution
The fourth proportional to 1,971,128.40, 2,952,545.40 and 1,639,352.40 is: 2,455,579.45
Step by Step Solution
- Step 1: Write the proportion equation
1,971,128.40 : 2,952,545.40 = 1,639,352.40 : x - Step 2: Convert to fraction form
1,971,128.40/2,952,545.40 = 1,639,352.40/x - Step 3: Cross multiply
1,971,128.40x = 2,952,545.40 × 1,639,352.40 - Step 4: Simplify right side
1,971,128.40x = 4,840,262,387,598.96 - Step 5: Solve for x
x = 4,840,262,387,598.96/1,971,128.40 - Step 6: Final answer
x = 2,455,579.45
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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.