Finding the Fourth Proportional to 708,623.64, 977,903.69 and 454,122.45
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Solution
The fourth proportional to 708,623.64, 977,903.69 and 454,122.45 is: 626,690.94
Step by Step Solution
- Step 1: Write the proportion equation
708,623.64 : 977,903.69 = 454,122.45 : x - Step 2: Convert to fraction form
708,623.64/977,903.69 = 454,122.45/x - Step 3: Cross multiply
708,623.64x = 977,903.69 × 454,122.45 - Step 4: Simplify right side
708,623.64x = 444,088,017,296.23 - Step 5: Solve for x
x = 444,088,017,296.23/708,623.64 - Step 6: Final answer
x = 626,690.94
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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.