Finding the Fourth Proportional to 629,005.41, 868,018.88 and 357,070.92
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Solution
The fourth proportional to 629,005.41, 868,018.88 and 357,070.92 is: 492,752.99
Step by Step Solution
- Step 1: Write the proportion equation
629,005.41 : 868,018.88 = 357,070.92 : x - Step 2: Convert to fraction form
629,005.41/868,018.88 = 357,070.92/x - Step 3: Cross multiply
629,005.41x = 868,018.88 × 357,070.92 - Step 4: Simplify right side
629,005.41x = 309,944,298,273.62 - Step 5: Solve for x
x = 309,944,298,273.62/629,005.41 - Step 6: Final answer
x = 492,752.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.