Finding the Fourth Proportional to 572,980.30, 858,842.70 and 288,216.70
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Solution
The fourth proportional to 572,980.30, 858,842.70 and 288,216.70 is: 432,009.28
Step by Step Solution
- Step 1: Write the proportion equation
572,980.30 : 858,842.70 = 288,216.70 : x - Step 2: Convert to fraction form
572,980.30/858,842.70 = 288,216.70/x - Step 3: Cross multiply
572,980.30x = 858,842.70 × 288,216.70 - Step 4: Simplify right side
572,980.30x = 247,532,808,813.09 - Step 5: Solve for x
x = 247,532,808,813.09/572,980.30 - Step 6: Final answer
x = 432,009.28
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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.