Finding the Fourth Proportional to 605,717.70, 907,555.95 and 478,871.70
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Solution
The fourth proportional to 605,717.70, 907,555.95 and 478,871.70 is: 717,500.68
Step by Step Solution
- Step 1: Write the proportion equation
605,717.70 : 907,555.95 = 478,871.70 : x - Step 2: Convert to fraction form
605,717.70/907,555.95 = 478,871.70/x - Step 3: Cross multiply
605,717.70x = 907,555.95 × 478,871.70 - Step 4: Simplify right side
605,717.70x = 434,602,860,621.62 - Step 5: Solve for x
x = 434,602,860,621.62/605,717.70 - Step 6: Final answer
x = 717,500.68
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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.