Finding the Fourth Proportional to 1,578,905.40, 2,368,358.10 and 977,917.80
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Solution
The fourth proportional to 1,578,905.40, 2,368,358.10 and 977,917.80 is: 1,466,876.70
Step by Step Solution
- Step 1: Write the proportion equation
1,578,905.40 : 2,368,358.10 = 977,917.80 : x - Step 2: Convert to fraction form
1,578,905.40/2,368,358.10 = 977,917.80/x - Step 3: Cross multiply
1,578,905.40x = 2,368,358.10 × 977,917.80 - Step 4: Simplify right side
1,578,905.40x = 2,316,059,542,764.18 - Step 5: Solve for x
x = 2,316,059,542,764.18/1,578,905.40 - Step 6: Final answer
x = 1,466,876.70
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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.