Finding the Fourth Proportional to 442,970.10, 664,455.15 and 440,345.70
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Solution
The fourth proportional to 442,970.10, 664,455.15 and 440,345.70 is: 660,518.55
Step by Step Solution
- Step 1: Write the proportion equation
442,970.10 : 664,455.15 = 440,345.70 : x - Step 2: Convert to fraction form
442,970.10/664,455.15 = 440,345.70/x - Step 3: Cross multiply
442,970.10x = 664,455.15 × 440,345.70 - Step 4: Simplify right side
442,970.10x = 292,589,968,145.36 - Step 5: Solve for x
x = 292,589,968,145.36/442,970.10 - Step 6: Final answer
x = 660,518.55
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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.