Finding the Fourth Proportional to 1,289,358.80, 1,934,037.84 and 402,894.80
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Solution
The fourth proportional to 1,289,358.80, 1,934,037.84 and 402,894.80 is: 604,342.09
Step by Step Solution
- Step 1: Write the proportion equation
1,289,358.80 : 1,934,037.84 = 402,894.80 : x - Step 2: Convert to fraction form
1,289,358.80/1,934,037.84 = 402,894.80/x - Step 3: Cross multiply
1,289,358.80x = 1,934,037.84 × 402,894.80 - Step 4: Simplify right side
1,289,358.80x = 779,213,788,739.23 - Step 5: Solve for x
x = 779,213,788,739.23/1,289,358.80 - Step 6: Final answer
x = 604,342.09
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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.