Finding the Fourth Proportional to 636,496.99, 880,678.85 and 554,995.08
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Solution
The fourth proportional to 636,496.99, 880,678.85 and 554,995.08 is: 767,910.04
Step by Step Solution
- Step 1: Write the proportion equation
636,496.99 : 880,678.85 = 554,995.08 : x - Step 2: Convert to fraction form
636,496.99/880,678.85 = 554,995.08/x - Step 3: Cross multiply
636,496.99x = 880,678.85 × 554,995.08 - Step 4: Simplify right side
636,496.99x = 488,772,430,197.55 - Step 5: Solve for x
x = 488,772,430,197.55/636,496.99 - Step 6: Final answer
x = 767,910.04
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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.