Finding the Fourth Proportional to 859,901.70, 1,289,852.55 and 260,833.80
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Solution
The fourth proportional to 859,901.70, 1,289,852.55 and 260,833.80 is: 391,250.70
Step by Step Solution
- Step 1: Write the proportion equation
859,901.70 : 1,289,852.55 = 260,833.80 : x - Step 2: Convert to fraction form
859,901.70/1,289,852.55 = 260,833.80/x - Step 3: Cross multiply
859,901.70x = 1,289,852.55 × 260,833.80 - Step 4: Simplify right side
859,901.70x = 336,437,142,056.19 - Step 5: Solve for x
x = 336,437,142,056.19/859,901.70 - Step 6: Final answer
x = 391,250.70
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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.