Finding the Fourth Proportional to 1,296,129.70, 1,944,194.55 and 1,243,641.70
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Solution
The fourth proportional to 1,296,129.70, 1,944,194.55 and 1,243,641.70 is: 1,865,462.55
Step by Step Solution
- Step 1: Write the proportion equation
1,296,129.70 : 1,944,194.55 = 1,243,641.70 : x - Step 2: Convert to fraction form
1,296,129.70/1,944,194.55 = 1,243,641.70/x - Step 3: Cross multiply
1,296,129.70x = 1,944,194.55 × 1,243,641.70 - Step 4: Simplify right side
1,296,129.70x = 2,417,881,415,292.74 - Step 5: Solve for x
x = 2,417,881,415,292.74/1,296,129.70 - Step 6: Final answer
x = 1,865,462.55
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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.