Finding the Fourth Proportional to 411,430.68, 617,106.06 and 279,160.92
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Solution
The fourth proportional to 411,430.68, 617,106.06 and 279,160.92 is: 418,714.27
Step by Step Solution
- Step 1: Write the proportion equation
411,430.68 : 617,106.06 = 279,160.92 : x - Step 2: Convert to fraction form
411,430.68/617,106.06 = 279,160.92/x - Step 3: Cross multiply
411,430.68x = 617,106.06 × 279,160.92 - Step 4: Simplify right side
411,430.68x = 172,271,895,447.18 - Step 5: Solve for x
x = 172,271,895,447.18/411,430.68 - Step 6: Final answer
x = 418,714.27
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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.