Finding the Fourth Proportional to 1,029,171.90, 1,543,612.05 and 319,271.70
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Solution
The fourth proportional to 1,029,171.90, 1,543,612.05 and 319,271.70 is: 478,862.32
Step by Step Solution
- Step 1: Write the proportion equation
1,029,171.90 : 1,543,612.05 = 319,271.70 : x - Step 2: Convert to fraction form
1,029,171.90/1,543,612.05 = 319,271.70/x - Step 3: Cross multiply
1,029,171.90x = 1,543,612.05 × 319,271.70 - Step 4: Simplify right side
1,029,171.90x = 492,831,643,343.99 - Step 5: Solve for x
x = 492,831,643,343.99/1,029,171.90 - Step 6: Final answer
x = 478,862.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.