Finding the Fourth Proportional to 4,892,357.80, 7,338,536.70 and 1,298,117.80
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Solution
The fourth proportional to 4,892,357.80, 7,338,536.70 and 1,298,117.80 is: 1,947,176.70
Step by Step Solution
- Step 1: Write the proportion equation
4,892,357.80 : 7,338,536.70 = 1,298,117.80 : x - Step 2: Convert to fraction form
4,892,357.80/7,338,536.70 = 1,298,117.80/x - Step 3: Cross multiply
4,892,357.80x = 7,338,536.70 × 1,298,117.80 - Step 4: Simplify right side
4,892,357.80x = 9,526,285,116,223.26 - Step 5: Solve for x
x = 9,526,285,116,223.26/4,892,357.80 - Step 6: Final answer
x = 1,947,176.70
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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.