Finding the Fourth Proportional to 617,400.97, 926,101.45 and 406,989.70
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Solution
The fourth proportional to 617,400.97, 926,101.45 and 406,989.70 is: 610,484.55
Step by Step Solution
- Step 1: Write the proportion equation
617,400.97 : 926,101.45 = 406,989.70 : x - Step 2: Convert to fraction form
617,400.97/926,101.45 = 406,989.70/x - Step 3: Cross multiply
617,400.97x = 926,101.45 × 406,989.70 - Step 4: Simplify right side
617,400.97x = 376,913,748,989.81 - Step 5: Solve for x
x = 376,913,748,989.81/617,400.97 - Step 6: Final answer
x = 610,484.55
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Similar ratio
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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.