Finding the Fourth Proportional to 708,132.74, 977,623.68 and 490,657.46
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Solution
The fourth proportional to 708,132.74, 977,623.68 and 490,657.46 is: 677,384.80
Step by Step Solution
- Step 1: Write the proportion equation
708,132.74 : 977,623.68 = 490,657.46 : x - Step 2: Convert to fraction form
708,132.74/977,623.68 = 490,657.46/x - Step 3: Cross multiply
708,132.74x = 977,623.68 × 490,657.46 - Step 4: Simplify right side
708,132.74x = 479,678,351,664.65 - Step 5: Solve for x
x = 479,678,351,664.65/708,132.74 - Step 6: Final answer
x = 677,384.80
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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.