Finding the Fourth Proportional to 1,187,423.80, 1,778,511.30 and 977,471.80
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Solution
The fourth proportional to 1,187,423.80, 1,778,511.30 and 977,471.80 is: 1,464,047.33
Step by Step Solution
- Step 1: Write the proportion equation
1,187,423.80 : 1,778,511.30 = 977,471.80 : x - Step 2: Convert to fraction form
1,187,423.80/1,778,511.30 = 977,471.80/x - Step 3: Cross multiply
1,187,423.80x = 1,778,511.30 × 977,471.80 - Step 4: Simplify right side
1,187,423.80x = 1,738,444,641,731.34 - Step 5: Solve for x
x = 1,738,444,641,731.34/1,187,423.80 - Step 6: Final answer
x = 1,464,047.33
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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.